{"title":"Screws for timber","description":"\u003cp\u003eStructural and carpentry screws for timber frame, mass timber and joinery. Partially threaded screws pull timbers tight, fully threaded screws such as VGS and VGZ give the highest pull-out, and plate screws seat into steel connectors. Coated, C4 and stainless versions cover dry indoor work through to exposed sites.\u003c\/p\u003e","products":[{"product_id":"flange-head-timber-screw-tll","title":"TLL · Flange-head timber screw","description":"\u003cp\u003eUniversal flange-head screw for timber frame, CLT, LVL and solid timber structures. 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Select diameter and length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"6 mm \/ 60 mm","offer_id":53462326116694,"sku":"TLL660","price":7.63,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 70 mm","offer_id":53462326149462,"sku":"TLL670","price":9.33,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 80 mm","offer_id":53462326182230,"sku":"TLL680","price":9.71,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 100 mm","offer_id":53462326214998,"sku":"TLL6100","price":12.59,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 120 mm","offer_id":53462326247766,"sku":"TLL6120","price":15.04,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 140 mm","offer_id":53462326280534,"sku":"TLL6140","price":18.61,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 160 mm","offer_id":53462326313302,"sku":"TLL6160","price":26.77,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 180 mm","offer_id":53462326346070,"sku":"TLL6180","price":31.31,"currency_code":"GBP","in_stock":true},{"title":"6 mm \/ 200 mm","offer_id":53462326378838,"sku":"TLL6200","price":38.61,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 60 mm","offer_id":53462326411606,"sku":"TLL860","price":14.83,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 80 mm","offer_id":53462326444374,"sku":"TLL880","price":8.46,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 100 mm","offer_id":53462326477142,"sku":"TLL8100","price":11.46,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 120 mm","offer_id":53462326509910,"sku":"TLL8120","price":12.58,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 140 mm","offer_id":53462326542678,"sku":"TLL8140","price":14.67,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 160 mm","offer_id":53462326575446,"sku":"TLL8160","price":16.24,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 180 mm","offer_id":53462326608214,"sku":"TLL8180","price":20.72,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 200 mm","offer_id":53462326640982,"sku":"TLL8200","price":24.4,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 220 mm","offer_id":53462326673750,"sku":"TLL8220","price":32.27,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 240 mm","offer_id":53462326706518,"sku":"TLL8240","price":37.34,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 260 mm","offer_id":53462326739286,"sku":"TLL8260","price":41.6,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 280 mm","offer_id":53462326772054,"sku":"TLL8280","price":45.6,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 300 mm","offer_id":53462326804822,"sku":"TLL8300","price":49.6,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 320 mm","offer_id":53462326837590,"sku":"TLL8320","price":56.27,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 340 mm","offer_id":53462326870358,"sku":"TLL8340","price":60.27,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 360 mm","offer_id":53462326903126,"sku":"TLL8360","price":67.2,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 380 mm","offer_id":53462326935894,"sku":"TLL8380","price":73.87,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 400 mm","offer_id":53462326968662,"sku":"TLL8400","price":77.33,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 160 mm","offer_id":53462327001430,"sku":"TLL10160","price":33.06,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 200 mm","offer_id":53462327034198,"sku":"TLL10200","price":44.8,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 240 mm","offer_id":53462327066966,"sku":"TLL10240","price":60.0,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 280 mm","offer_id":53462327099734,"sku":"TLL10280","price":72.27,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 320 mm","offer_id":53462327132502,"sku":"TLL10320","price":88.0,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 360 mm","offer_id":53462327165270,"sku":"TLL10360","price":100.8,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 400 mm","offer_id":53462327198038,"sku":"TLL10400","price":113.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/1.png?v=1778060837"},{"product_id":"small-head-screw-tpp","title":"TPP · Small head timber screw","description":"\u003cp\u003eSmall head screw designed for fastening tongue-and-groove boards, battens, timber profiles and other small-sized elements. 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Select length to see price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"30 mm","offer_id":53463099441494,"sku":"TPP3530","price":10.65,"currency_code":"GBP","in_stock":true},{"title":"40 mm","offer_id":53463099474262,"sku":"TPP3540","price":12.0,"currency_code":"GBP","in_stock":true},{"title":"50 mm","offer_id":53463099507030,"sku":"TPP3550","price":14.95,"currency_code":"GBP","in_stock":true},{"title":"60 mm","offer_id":53463099539798,"sku":"TPP3560","price":18.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/3.png?v=1778063336"},{"product_id":"small-head-screw-tpp-aisi410","title":"TPP AISI410 · Small head timber screw, Stainless","description":"\u003cp\u003eSmall head screw in martensitic stainless steel AISI 410, the top-performing stainless steel in terms of mechanical strength. Designed for fastening tongue-and-groove boards, battens, window glazing beads and other small elements. 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Select length to see price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"40 mm","offer_id":53463323803990,"sku":"TPP3540AS","price":22.95,"currency_code":"GBP","in_stock":true},{"title":"50 mm","offer_id":53463323836758,"sku":"TPP3550AS","price":28.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/4.png?v=1778064012"},{"product_id":"full-thread-screw-hts-ht","title":"HTS-HT · Full thread screw for woodwork","description":"\u003cp\u003eFull thread screw for woodwork, joinery and furniture. 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Connections can be calculated to Eurocode 5 for thick steel-timber plate connections, even with thin plates.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eC4 EVO coating for coastal, industrial and treated-timber applications\u003c\/li\u003e\n\u003cli\u003eSuitable for acidic woods (pH above 4) such as spruce, larch, pine, ash and birch\u003c\/li\u003e\n\u003cli\u003eCertified for CLT, glulam, LVL and high density woods\u003c\/li\u003e\n\u003cli\u003eThe Ø7mm version suits custom-designed connections in steel structures\u003c\/li\u003e\n\u003cli\u003eETA-11\/0030 certified, UKCA marked (UKTA-0836 22\/6195)\u003c\/li\u003e\n\u003cli\u003eDrive: TX20 (Ø5mm), TX30 (Ø7mm), bit included\u003c\/li\u003e\n\u003cli\u003eMaterial: carbon steel with C4 EVO coating\u003c\/li\u003e\n\u003cli\u003eService class SC1 to SC3, atmospheric corrosivity C1 to C4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"5 mm \/ 40 mm","offer_id":54034827968854,"sku":"LBSEVO540","price":76.2,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 50 mm","offer_id":54034828001622,"sku":"LBSEVO550","price":38.28,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 60 mm","offer_id":54034828034390,"sku":"LBSEVO560","price":41.48,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 70 mm","offer_id":54034828067158,"sku":"LBSEVO570","price":46.32,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 80 mm","offer_id":54034828099926,"sku":"LBSEVO780","price":30.4,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 100 mm","offer_id":54034828132694,"sku":"LBSEVO7100","price":36.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/LBS-EVO-1750255821.png?v=1784218763"},{"product_id":"round-head-plate-screw-lbs-hardwood","title":"LBS HARDWOOD · Round head screw for plates","description":"\u003cp\u003eRound head screw for fastening perforated steel plates to timber, engineered for high density hardwoods. A special tip with embossed slit elements allows installation without pre-drilling, with ETA-11\/0030 approval for structural applications stressed in any direction relative to the grain.\u003c\/p\u003e\n\u003cp\u003eThe internal thread diameter is increased over the standard LBS to ensure tightening in the densest woods. In steel-to-timber connections this can deliver more than 15% additional strength.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo pre-drilling required on beech, oak, cypress, ash, eucalyptus and bamboo\u003c\/li\u003e\n\u003cli\u003eTested and certified for beech LVL (Microllam) up to 800 kg\/m³\u003c\/li\u003e\n\u003cli\u003eCylindrical shoulder interlocks with the plate hole for high shear performance\u003c\/li\u003e\n\u003cli\u003eETA-11\/0030 certified, UKCA marked (UKTA-0836 22\/6195)\u003c\/li\u003e\n\u003cli\u003eDrive: TX20, bit included\u003c\/li\u003e\n\u003cli\u003eDiameter: 5mm\u003c\/li\u003e\n\u003cli\u003eMaterial: electrogalvanised carbon steel\u003c\/li\u003e\n\u003cli\u003eService class SC1 to SC2, atmospheric corrosivity C1 to C2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePrice shown is per box. Select length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"40 mm","offer_id":54034830131542,"sku":"LBSH540","price":68.2,"currency_code":"GBP","in_stock":true},{"title":"50 mm","offer_id":54034830164310,"sku":"LBSH550","price":34.96,"currency_code":"GBP","in_stock":true},{"title":"60 mm","offer_id":54034830197078,"sku":"LBSH560","price":38.92,"currency_code":"GBP","in_stock":true},{"title":"70 mm","offer_id":54034830229846,"sku":"LBSH570","price":44.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/LBSH_RP1_800x600-1693836173.jpg?v=1780061023"},{"product_id":"pan-head-plate-screw-hbs-plate","title":"HBS PLATE · Pan head screw for plates","description":"\u003cp\u003ePan head screw for fastening perforated and custom steel plates to timber. The under-head shoulder interlocks with the circular hole in the plate, while the edgeless head geometry reduces stress concentration and adds strength, guaranteeing excellent static performance.\u003c\/p\u003e\u003cp\u003eThe increased inner core diameter on the Ø8, Ø10 and Ø12 screws raises performance in thick plate applications, achieving a strength increase of more than 15% in steel-to-timber connections. The 3 THORNS tip reduces minimum installation distances, so more screws fit in less space.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInterlocking under-head shoulder for high static performance on plates\u003c\/li\u003e\n\u003cli\u003eIncreased core diameter for thick plate connections\u003c\/li\u003e\n\u003cli\u003e3 THORNS tip reduces minimum spacing and installation effort\u003c\/li\u003e\n\u003cli\u003eIdeal for multi-storey timber buildings and large custom plates\u003c\/li\u003e\n\u003cli\u003eSuitable for solid timber, glulam, CLT, LVL and high density woods\u003c\/li\u003e\n\u003cli\u003eETA-11\/0030 certified\u003c\/li\u003e\n\u003cli\u003eDrive: TX40 (Ø8, Ø10), TX50 (Ø12), bit included\u003c\/li\u003e\n\u003cli\u003eMaterial: electrogalvanised carbon steel\u003c\/li\u003e\n\u003cli\u003eService class SC1 to SC2, atmospheric corrosivity C1 to C2\u003c\/li\u003e\n\u003cli\u003eInstall with a torque-controlled screwdriver, impact drivers not permitted\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"8 mm \/ 60 mm","offer_id":54035286262102,"sku":"HBSPL860","price":26.62,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 80 mm","offer_id":54035286294870,"sku":"HBSPL880","price":34.62,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 100 mm","offer_id":54035286327638,"sku":"HBSPL8100","price":47.42,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 120 mm","offer_id":54035286360406,"sku":"HBSPL8120","price":51.9,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 140 mm","offer_id":54035286393174,"sku":"HBSPL8140","price":61.18,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 160 mm","offer_id":54035286425942,"sku":"HBSPL8160","price":67.2,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 80 mm","offer_id":54035286458710,"sku":"HBSPL1080","price":28.77,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 100 mm","offer_id":54035286491478,"sku":"HBSPL10100","price":32.96,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 120 mm","offer_id":54035286524246,"sku":"HBSPL10120","price":39.36,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 140 mm","offer_id":54035286557014,"sku":"HBSPL10140","price":50.24,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 160 mm","offer_id":54035286589782,"sku":"HBSPL10160","price":66.24,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 180 mm","offer_id":54035286622550,"sku":"HBSPL10180","price":79.36,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 100 mm","offer_id":54035286655318,"sku":"HBSPL12100","price":41.12,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 120 mm","offer_id":54035286688086,"sku":"HBSPL12120","price":47.36,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 140 mm","offer_id":54035286720854,"sku":"HBSPL12140","price":53.44,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 160 mm","offer_id":54035286753622,"sku":"HBSPL12160","price":59.68,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 180 mm","offer_id":54035286786390,"sku":"HBSPL12180","price":64.96,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 200 mm","offer_id":54035286819158,"sku":"HBSPL12200","price":69.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/HBS-PLATE-1750254701.png?v=1784218762"},{"product_id":"pan-head-plate-screw-hbs-plate-evo","title":"HBS PLATE EVO · Pan head screw for plates, C4","description":"\u003cp\u003ePan head screw for fastening steel plates to timber in outdoor and corrosive environments. The under-head shoulder interlocks with the circular hole in the plate and the edgeless head geometry reduces stress concentration, guaranteeing excellent static performance.\u003c\/p\u003e\u003cp\u003eThe C4 EVO coating was tested to atmospheric corrosion class C4 by RISE (Research Institutes of Sweden), making it suitable for ACQ and CCA treated timber and acidic woods such as spruce, larch and pine. The increased core diameter raises thick plate performance by more than 15% in steel-to-timber connections.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eC4 EVO coating for coastal, industrial and treated-timber applications\u003c\/li\u003e\n\u003cli\u003eInterlocking under-head shoulder for high static performance on plates\u003c\/li\u003e\n\u003cli\u003eIncreased core diameter for thick plate connections\u003c\/li\u003e\n\u003cli\u003eSuitable for solid timber, glulam, CLT, LVL and high density woods\u003c\/li\u003e\n\u003cli\u003eETA-11\/0030 certified\u003c\/li\u003e\n\u003cli\u003eDrive: TX40 (Ø8, Ø10), TX50 (Ø12), bit included\u003c\/li\u003e\n\u003cli\u003eMaterial: carbon steel with C4 EVO coating\u003c\/li\u003e\n\u003cli\u003eService class SC1 to SC3, atmospheric corrosivity C1 to C4\u003c\/li\u003e\n\u003cli\u003eInstall with a torque-controlled screwdriver, impact drivers not permitted\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"5 mm \/ 50 mm","offer_id":54051445866838,"sku":"HBSPEVO550","price":20.38,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 60 mm","offer_id":54051445899606,"sku":"HBSPEVO560","price":21.86,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 70 mm","offer_id":54051445932374,"sku":"HBSPEVO570","price":14.24,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 40 mm","offer_id":54051457499478,"sku":"HBSPLEVO840","price":30.92,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 60 mm","offer_id":54051457532246,"sku":"HBSPLEVO860","price":34.56,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 80 mm","offer_id":54051457565014,"sku":"HBSPLEVO880","price":45.38,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 100 mm","offer_id":54051457597782,"sku":"HBSPLEVO8100","price":61.76,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 120 mm","offer_id":54051457630550,"sku":"HBSPLEVO8120","price":68.48,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 140 mm","offer_id":54051457663318,"sku":"HBSPLEVO8140","price":79.36,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 160 mm","offer_id":54051457696086,"sku":"HBSPLEVO8160","price":87.04,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 60 mm","offer_id":54051457728854,"sku":"HBSPLEVO1060","price":34.24,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 80 mm","offer_id":54051457761622,"sku":"HBSPLEVO1080","price":37.44,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 100 mm","offer_id":54051457794390,"sku":"HBSPLEVO10100","price":42.88,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 120 mm","offer_id":54051457827158,"sku":"HBSPLEVO10120","price":51.52,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 140 mm","offer_id":54051457859926,"sku":"HBSPLEVO10140","price":65.28,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 160 mm","offer_id":54051457892694,"sku":"HBSPLEVO10160","price":86.4,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 180 mm","offer_id":54051457925462,"sku":"HBSPLEVO10180","price":103.04,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 120 mm","offer_id":54051457958230,"sku":"HBSPLEVO12120","price":61.44,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 140 mm","offer_id":54051457990998,"sku":"HBSPLEVO12140","price":69.44,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 160 mm","offer_id":54051458023766,"sku":"HBSPLEVO12160","price":77.6,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 180 mm","offer_id":54051458056534,"sku":"HBSPLEVO12180","price":84.32,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 200 mm","offer_id":54051458089302,"sku":"HBSPLEVO12200","price":90.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/HBS-PLATE-EVO-1750254667.png?v=1784218764"},{"product_id":"pan-head-plate-screw-hbs-plate-a4","title":"HBS PLATE A4 · Pan head screw for plates, Stainless AISI316","description":"\u003cp\u003ePan head screw for fastening steel plates to timber in highly corrosive and marine environments. The under-head shoulder interlocks with the circular hole in the plate and the edgeless head geometry reduces stress concentration, guaranteeing excellent static performance.\u003c\/p\u003e\u003cp\u003eMade from A4 AISI316 austenitic stainless steel for the highest corrosion resistance, suitable for environments next to the sea in class C5 and for the most aggressive timbers in class T5, such as oak, Douglas fir and chestnut, and in wood moisture above 20%.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eA4 AISI316 stainless steel for marine and highly corrosive exposure (C5)\u003c\/li\u003e\n\u003cli\u003eSuitable for aggressive acidic woods (T5) and high moisture conditions\u003c\/li\u003e\n\u003cli\u003eInterlocking under-head shoulder for high static performance on plates\u003c\/li\u003e\n\u003cli\u003eSuitable for solid timber, glulam, CLT, LVL and treated timber\u003c\/li\u003e\n\u003cli\u003eETA-11\/0030 certified\u003c\/li\u003e\n\u003cli\u003eDrive: TX40 (Ø8, Ø10), TX50 (Ø12), bit included\u003c\/li\u003e\n\u003cli\u003eMaterial: A4 AISI316 austenitic stainless steel\u003c\/li\u003e\n\u003cli\u003eService class SC1 to SC4, atmospheric corrosivity C1 to C5\u003c\/li\u003e\n\u003cli\u003eInstall with a torque-controlled screwdriver, impact drivers not permitted\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"8 mm \/ 60 mm","offer_id":54035287933270,"sku":"HBSPL860A4","price":68.48,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 80 mm","offer_id":54035287966038,"sku":"HBSPL880A4","price":90.24,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 100 mm","offer_id":54035287998806,"sku":"HBSPL8100A4","price":122.88,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 120 mm","offer_id":54035288031574,"sku":"HBSPL8120A4","price":133.76,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 140 mm","offer_id":54035288064342,"sku":"HBSPL8140A4","price":156.8,"currency_code":"GBP","in_stock":true},{"title":"8 mm \/ 160 mm","offer_id":54035288097110,"sku":"HBSPL8160A4","price":170.88,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 80 mm","offer_id":54035288129878,"sku":"HBSPL1080A4","price":74.24,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 100 mm","offer_id":54035288162646,"sku":"HBSPL10100A4","price":84.16,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 120 mm","offer_id":54035288195414,"sku":"HBSPL10120A4","price":101.12,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 140 mm","offer_id":54035288228182,"sku":"HBSPL10140A4","price":128.96,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 160 mm","offer_id":54035288260950,"sku":"HBSPL10160A4","price":170.56,"currency_code":"GBP","in_stock":true},{"title":"10 mm \/ 180 mm","offer_id":54035288293718,"sku":"HBSPL10180A4","price":204.16,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 100 mm","offer_id":54035288326486,"sku":"HBSPL12100A4","price":106.08,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 120 mm","offer_id":54035288359254,"sku":"HBSPL12120A4","price":122.08,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 140 mm","offer_id":54035288392022,"sku":"HBSPL12140A4","price":138.08,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 160 mm","offer_id":54035288424790,"sku":"HBSPL12160A4","price":153.92,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 180 mm","offer_id":54035288457558,"sku":"HBSPL12180A4","price":167.52,"currency_code":"GBP","in_stock":true},{"title":"12 mm \/ 200 mm","offer_id":54035288490326,"sku":"HBSPL12200A4","price":179.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/HBS-PLATE-A4-1750254586.png?v=1784218763"},{"product_id":"fully-threaded-screw-vgs","title":"VGS · Fully threaded screw","description":"\u003cp\u003eFully threaded structural screw with a deep thread and high strength steel for excellent tensile and sliding performance. Approved for structural applications stressed in any direction relative to the grain, from 0 to 90 degrees.\u003c\/p\u003e\u003cp\u003eThe 3 THORNS tip reduces minimum installation distances, so more screws fit in less space. Certified for timber to ETA-11\/0030 and for timber-to-concrete via the TC FUSION system to ETA-22\/0806, and can be used on steel plates with VGU and HUS washers.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFully threaded for reinforcement, tension, compression and sliding connections\u003c\/li\u003e\n\u003cli\u003e3 THORNS tip reduces minimum spacing and installation effort\u003c\/li\u003e\n\u003cli\u003eCountersunk head up to 600mm, hexagonal head above, ideal for plates and concealed reinforcement\u003c\/li\u003e\n\u003cli\u003eSuitable for solid timber, glulam, CLT, LVL and high density woods\u003c\/li\u003e\n\u003cli\u003eETA-11\/0030 and ETA-22\/0806 (TC FUSION) certified, UKCA marked (UKTA-0836 22\/6195)\u003c\/li\u003e\n\u003cli\u003eDrive: TX40 (Ø9), TX50 (Ø11)\u003c\/li\u003e\n\u003cli\u003eMaterial: electrogalvanised carbon steel\u003c\/li\u003e\n\u003cli\u003eService class SC1 to SC2, atmospheric corrosivity C1 to C2\u003c\/li\u003e\n\u003cli\u003eInstall with a torque-controlled screwdriver, impact drivers not permitted\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see pack quantity and price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"9 mm \/ 100 mm","offer_id":54036062437718,"sku":"VGS9100","price":28.54,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 120 mm","offer_id":54036062470486,"sku":"VGS9120","price":30.94,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 140 mm","offer_id":54036062503254,"sku":"VGS9140","price":37.87,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 160 mm","offer_id":54036062536022,"sku":"VGS9160","price":42.94,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 180 mm","offer_id":54036062568790,"sku":"VGS9180","price":52.53,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 200 mm","offer_id":54036062601558,"sku":"VGS9200","price":62.13,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 220 mm","offer_id":54036062634326,"sku":"VGS9220","price":74.94,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 240 mm","offer_id":54036062667094,"sku":"VGS9240","price":88.27,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 260 mm","offer_id":54036062699862,"sku":"VGS9260","price":97.6,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 280 mm","offer_id":54036062732630,"sku":"VGS9280","price":105.87,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 300 mm","offer_id":54036062765398,"sku":"VGS9300","price":118.93,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 320 mm","offer_id":54036062798166,"sku":"VGS9320","price":129.34,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 340 mm","offer_id":54036062830934,"sku":"VGS9340","price":138.4,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 360 mm","offer_id":54036062863702,"sku":"VGS9360","price":147.73,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 380 mm","offer_id":54036062896470,"sku":"VGS9380","price":157.34,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 400 mm","offer_id":54036062929238,"sku":"VGS9400","price":166.4,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 440 mm","offer_id":54036062962006,"sku":"VGS9440","price":114.13,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 480 mm","offer_id":54036062994774,"sku":"VGS9480","price":143.07,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 520 mm","offer_id":54036063027542,"sku":"VGS9520","price":163.33,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 560 mm","offer_id":54036063060310,"sku":"VGS9560","price":182.93,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 600 mm","offer_id":54036063093078,"sku":"VGS9600","price":218.4,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 80 mm","offer_id":54036063125846,"sku":"VGS1180","price":16.13,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 100 mm","offer_id":54036063158614,"sku":"VGS11100","price":21.2,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 125 mm","offer_id":54036063191382,"sku":"VGS11125","price":26.4,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 150 mm","offer_id":54036063224150,"sku":"VGS11150","price":31.6,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 175 mm","offer_id":54036063256918,"sku":"VGS11175","price":39.6,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 200 mm","offer_id":54036063289686,"sku":"VGS11200","price":47.47,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 225 mm","offer_id":54036063322454,"sku":"VGS11225","price":57.2,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 250 mm","offer_id":54036063355222,"sku":"VGS11250","price":66.53,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 275 mm","offer_id":54036063387990,"sku":"VGS11275","price":78.27,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 300 mm","offer_id":54036063420758,"sku":"VGS11300","price":89.73,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 325 mm","offer_id":54036063453526,"sku":"VGS11325","price":96.27,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 350 mm","offer_id":54036063486294,"sku":"VGS11350","price":103.2,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 375 mm","offer_id":54036063519062,"sku":"VGS11375","price":114.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 400 mm","offer_id":54036063551830,"sku":"VGS11400","price":126.27,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 425 mm","offer_id":54036063584598,"sku":"VGS11425","price":136.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 450 mm","offer_id":54036063617366,"sku":"VGS11450","price":145.6,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 475 mm","offer_id":54036063650134,"sku":"VGS11475","price":158.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 500 mm","offer_id":54036063682902,"sku":"VGS11500","price":198.93,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 525 mm","offer_id":54036063715670,"sku":"VGS11525","price":204.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 550 mm","offer_id":54036063748438,"sku":"VGS11550","price":232.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 575 mm","offer_id":54036063781206,"sku":"VGS11575","price":266.13,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 600 mm","offer_id":54036063813974,"sku":"VGS11600","price":288.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 650 mm","offer_id":54036063846742,"sku":"VGS11650","price":566.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 700 mm","offer_id":54036063879510,"sku":"VGS11700","price":588.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 750 mm","offer_id":54036063912278,"sku":"VGS11750","price":608.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 800 mm","offer_id":54036063945046,"sku":"VGS11800","price":710.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 850 mm","offer_id":54036063977814,"sku":"VGS11850","price":742.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 900 mm","offer_id":54036064010582,"sku":"VGS11900","price":802.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 950 mm","offer_id":54036064043350,"sku":"VGS11950","price":848.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 1000 mm","offer_id":54036064076118,"sku":"VGS111000","price":909.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/SQUARE_48.png?v=1780067311"},{"product_id":"round-head-plate-screw-hardwood-lbs-hardwood-evo","title":"LBS HARDWOOD EVO · Round head screw for plates on hardwoods","description":"\u003cp\u003eThe LBS HARDWOOD EVO is a round head screw for fastening steel plates and connectors to timber, engineered for high density and treated woods. A special slit tip drives into hardwoods without pre-drilling, the enlarged core handles dense timber, and the cylindrical under head interlocks with the plate hole for excellent static performance. The C4 EVO coating suits outdoor and corrosive environments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDrives into high density hardwoods without pre-drilling\u003c\/li\u003e\n\u003cli\u003eCylindrical under head interlocks with the plate hole for strong, stable bearing\u003c\/li\u003e\n\u003cli\u003eEnlarged core diameter for reliable driving in dense timber\u003c\/li\u003e\n\u003cli\u003eApproved for structural use with stresses in any direction relative to the grain\u003c\/li\u003e\n\u003cli\u003eØ5 with TX20 bit, Ø7 with TX30 bit, bit included\u003c\/li\u003e\n\u003cli\u003eSuitable for timber-based panels, solid timber, glulam, CLT, LVL, high density woods, and ACQ or CCA treated timber\u003c\/li\u003e\n\u003cli\u003eMaterial: carbon steel with C4 EVO coating, tested to corrosion class C4 by RISE\u003c\/li\u003e\n\u003cli\u003eService class: SC1, SC2, SC3; atmospheric corrosivity C1 to C4; wood corrosivity T1 to T3\u003c\/li\u003e\n\u003cli\u003eCE marked to ETA-11\/0030; ICC-ES ESR-4645\u003c\/li\u003e\n\u003cli\u003eIdeal with Rothoblaas plates and connectors such as ALUMIDI, LOCK and TITAN ranges\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see the price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"5 mm \/ 80 mm","offer_id":54051631432022,"sku":"LBSHEVO580","price":59.52,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 100 mm","offer_id":54051631464790,"sku":"LBSHEVO5100","price":67.72,"currency_code":"GBP","in_stock":true},{"title":"5 mm \/ 120 mm","offer_id":54051631497558,"sku":"LBSHEVO5120","price":74.64,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 60 mm","offer_id":54051631530326,"sku":"LBSHEVO760","price":28.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 80 mm","offer_id":54051631563094,"sku":"LBSHEVO780","price":35.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 100 mm","offer_id":54051631595862,"sku":"LBSHEVO7100","price":44.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 120 mm","offer_id":54051631628630,"sku":"LBSHEVO7120","price":54.78,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 160 mm","offer_id":54051631661398,"sku":"LBSHEVO7160","price":70.4,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 200 mm","offer_id":54051631694166,"sku":"LBSHEVO7200","price":88.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/LBS-HARDWOOD-EVO-1750255895.png?v=1784219409"},{"product_id":"fully-threaded-cylindrical-head-screw-vgz-evo","title":"VGZ EVO · Fully threaded cylindrical head screw","description":"\u003cp\u003eVGZ EVO is a fully threaded structural screw with a cylindrical head, made from high-strength steel (fy,k = 1000 N\/mm2) for excellent tensile and withdrawal performance. The full thread grips along its entire length, making it ideal for concealed timber-to-timber joints, beam reinforcements, truss and rafter connections, and stud fastening. The cylindrical head sinks flush into the timber for a clean, fire-friendly finish, and the C4 EVO coating suits outdoor and corrosive environments.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFully threaded for high axial load transfer along the whole screw\u003c\/li\u003e\n\u003cli\u003eHigh-strength steel, fy,k 1000 N\/mm2, for excellent tensile capacity\u003c\/li\u003e\n\u003cli\u003eApproved for structural use with stresses in any direction relative to the grain (0 to 90 degrees)\u003c\/li\u003e\n\u003cli\u003eCylindrical head penetrates the timber surface for concealed, demountable joints\u003c\/li\u003e\n\u003cli\u003eReduced minimum distances for tighter, more efficient connections\u003c\/li\u003e\n\u003cli\u003eSuitable for timber-based panels, solid timber, glulam, CLT, LVL, high density woods, and ACQ or CCA treated timber\u003c\/li\u003e\n\u003cli\u003eDiameters from 5.6 to 11 mm, with the matching TX bit included\u003c\/li\u003e\n\u003cli\u003eMaterial: carbon steel with C4 EVO coating, no rust after 1440 hours salt spray (ISO 9227)\u003c\/li\u003e\n\u003cli\u003eService class: SC1, SC2, SC3; atmospheric corrosivity C1 to C4; wood corrosivity T1 to T3\u003c\/li\u003e\n\u003cli\u003eCE marked to ETA-11\/0030; UKCA to UKTA-0836-22\/6195; ICC-ES ESR-4645\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003ePrice shown is per box. Select diameter and length to see the price.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"5.6 mm \/ 140 mm","offer_id":54213021630806,"sku":"VGZEVO5140","price":29.86,"currency_code":"GBP","in_stock":true},{"title":"5.6 mm \/ 150 mm","offer_id":54213021663574,"sku":"VGZEVO5150","price":32.26,"currency_code":"GBP","in_stock":true},{"title":"5.6 mm \/ 160 mm","offer_id":54213021696342,"sku":"VGZEVO5160","price":36.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 80 mm","offer_id":54213021729110,"sku":"VGZEVO780","price":19.38,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 100 mm","offer_id":54213021761878,"sku":"VGZEVO7100","price":22.46,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 120 mm","offer_id":54213021794646,"sku":"VGZEVO7120","price":28.26,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 140 mm","offer_id":54213021827414,"sku":"VGZEVO7140","price":35.2,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 160 mm","offer_id":54213021860182,"sku":"VGZEVO7160","price":41.6,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 180 mm","offer_id":54213021892950,"sku":"VGZEVO7180","price":49.86,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 200 mm","offer_id":54213021925718,"sku":"VGZEVO7200","price":57.06,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 220 mm","offer_id":54213021958486,"sku":"VGZEVO7220","price":68.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 240 mm","offer_id":54213021991254,"sku":"VGZEVO7240","price":76.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 260 mm","offer_id":54213022024022,"sku":"VGZEVO7260","price":90.4,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 280 mm","offer_id":54213022056790,"sku":"VGZEVO7280","price":98.4,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 300 mm","offer_id":54213022089558,"sku":"VGZEVO7300","price":113.86,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 340 mm","offer_id":54213022122326,"sku":"VGZEVO7340","price":127.46,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 380 mm","offer_id":54213022155094,"sku":"VGZEVO7380","price":154.14,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 160 mm","offer_id":54213022187862,"sku":"VGZEVO9160","price":55.2,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 180 mm","offer_id":54213022220630,"sku":"VGZEVO9180","price":67.74,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 200 mm","offer_id":54213022253398,"sku":"VGZEVO9200","price":82.94,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 220 mm","offer_id":54213022286166,"sku":"VGZEVO9220","price":94.4,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 240 mm","offer_id":54213022318934,"sku":"VGZEVO9240","price":112.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 260 mm","offer_id":54213022351702,"sku":"VGZEVO9260","price":123.2,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 280 mm","offer_id":54213022384470,"sku":"VGZEVO9280","price":142.14,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 300 mm","offer_id":54213022417238,"sku":"VGZEVO9300","price":148.54,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 320 mm","offer_id":54213022450006,"sku":"VGZEVO9320","price":82.4,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 340 mm","offer_id":54213022482774,"sku":"VGZEVO9340","price":86.53,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 360 mm","offer_id":54213022515542,"sku":"VGZEVO9360","price":96.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 380 mm","offer_id":54213022548310,"sku":"VGZEVO9380","price":100.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 400 mm","offer_id":54213022581078,"sku":"VGZEVO9400","price":106.67,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 440 mm","offer_id":54213022613846,"sku":"VGZEVO9440","price":143.87,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 480 mm","offer_id":54213022646614,"sku":"VGZEVO9480","price":180.4,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 520 mm","offer_id":54213022679382,"sku":"VGZEVO9520","price":207.47,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 250 mm","offer_id":54213022712150,"sku":"VGZEVO11250","price":88.0,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 300 mm","offer_id":54213022744918,"sku":"VGZEVO11300","price":118.27,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 350 mm","offer_id":54213022777686,"sku":"VGZEVO11350","price":136.13,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 400 mm","offer_id":54213022810454,"sku":"VGZEVO11400","price":166.53,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 450 mm","offer_id":54213022843222,"sku":"VGZEVO11450","price":197.33,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 500 mm","offer_id":54213022875990,"sku":"VGZEVO11500","price":270.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 550 mm","offer_id":54213022908758,"sku":"VGZEVO11550","price":318.67,"currency_code":"GBP","in_stock":true},{"title":"11 mm \/ 600 mm","offer_id":54213022941526,"sku":"VGZEVO11600","price":388.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/VGZ-EVO-1750318756.png?v=1784219409"},{"product_id":"insulation-screw-dwz","title":"DWZ · Double thread screw for insulation layer","description":"\u003cp\u003eDWZ is a double thread insulation screw that fixes the counter batten through the\ninsulation layer into the rafter below, holding the batten off the roof deck across the\nfull insulation depth.\u003c\/p\u003e\n\n\u003cp\u003eOn an over-rafter warm roof the batten has to be held down through a thick,\ncompressible layer without crushing it and without a bracket bridging it. DWZ does that\nwith one screw. The point-side thread bites the rafter, the head-side thread bites the\nbatten, and because the two pull at different rates the screw clamps the sandwich tight.\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFixes the counter batten through insulation into the rafter in one screw\u003c\/li\u003e\n  \u003cli\u003eDouble thread with a 3 THORNS tip, 100 mm point side and 60 mm head side\u003c\/li\u003e\n  \u003cli\u003eCylindrical head, Ø9.50 mm on Ø7 and Ø11.50 mm on Ø9, sits hidden inside the batten\u003c\/li\u003e\n  \u003cli\u003eSingle fixing through the layer limits thermal bridging, with no bracket or rail\n      crossing the insulation\u003c\/li\u003e\n  \u003cli\u003eCertified for hard, soft and façade insulation, fixed at 60° or 90°\u003c\/li\u003e\n  \u003cli\u003eCharacteristic tensile strength ftens,k 15.4 kN at Ø7 and 25.4 kN at Ø9\u003c\/li\u003e\n  \u003cli\u003eTX30 drive on Ø7 and TX40 on Ø9, bit included in every box\u003c\/li\u003e\n  \u003cli\u003eSuits over-rafter warm roofs on rafters, CLT and glulam, and ventilated façades\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBefore you fix\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eThe tip must not protrude from the underside of the rafter. Check your build-up\n      depth before you order a length\u003c\/li\u003e\n  \u003cli\u003eMinimum batten size is 50\/30 mm base\/height for Ø7 and 60\/40 mm for Ø9\u003c\/li\u003e\n  \u003cli\u003eNo pre-drilling in normal softwood. Pre-drilling is required above 550 kg\/m³\n      characteristic density\u003c\/li\u003e\n  \u003cli\u003eElectrogalvanised zinc at minimum 5 µm, so service class 1 and 2 only, C2\n      atmospheric and T2 wood corrosivity. Not for exterior or coastal exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eA note on the name.\u003c\/strong\u003e This screw is certified under ETA-11\/0030 as screw\ntype DGZ. DWZ is the Holz Technic code for the same Rothoblaas screw, same manufacturer,\nsame geometry, same approvals. If you or your building control officer are checking the\napproval document, look for DGZ. If your build-up calls for a screw longer than 400 mm,\nthe identical screw is stocked in lengths up to 520 mm as\n\u003ca href=\"\/products\/insulation-screw-dgz\"\u003eDGZ\u003c\/a\u003e: same manufacturer, same ETA, same\nperformance, listed under the DGZ code.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you'll also need\u003c\/h2\u003e\n\u003cp\u003eDWZ passes through the breather membrane, so every penetration needs sealing. Run\n\u003ca href=\"\/collections\/membranes\"\u003eTraspir House breather membranes\u003c\/a\u003e under the battens and\nclose the fixing line with \u003ca href=\"\/collections\/sealants-tapes-and-profiles\"\u003enail sealing\ntapes\u003c\/a\u003e such as FILLUM or GEMINI. See the full\n\u003ca href=\"\/collections\/screws-for-timber\"\u003estructural timber screw range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I choose the right DWZ length for my roof build-up?\u003c\/strong\u003e\nLength comes off the selection table on page 2 of the datasheet, from three numbers:\ninsulation plus planking thickness, batten thickness, and whether you fix at 60° or 90°.\nRead it off the table rather than adding the layers up, and check the tip will not break\nthrough the underside of the rafter.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan DWZ fix through soft insulation, or only rigid?\u003c\/strong\u003e\nBoth. Soft insulation is a certified case in the ETA, not a workaround. It does reduce\ncapacity, so in practice it usually means more screws or the 60° arrangement. The number\nand the spacing are your engineer's call.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePrice shown is per box of 50 pieces. See the table below for codes, sizes and\npack prices.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"7 mm · min. batten 50\/30 mm \/ 220 mm","offer_id":54916832428374,"sku":"DWZ7220","price":57.6,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 260 mm","offer_id":54916832461142,"sku":"DWZ7260","price":76.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 300 mm","offer_id":54916832493910,"sku":"DWZ7300","price":84.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 340 mm","offer_id":54916832526678,"sku":"DWZ7340","price":98.14,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 400 mm","offer_id":54916832559446,"sku":"DWZ9400","price":163.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/DWZ_RP.jpg?v=1786179596"},{"product_id":"insulation-screw-dgz","title":"DGZ · Double threaded screw for insulation","description":"\u003cp\u003eDGZ is the Rothoblaas double threaded insulation screw, certified under ETA-11\/0030,\nfixing counter battens and façade battens through the insulation and holding them clear\nof the structure behind.\u003c\/p\u003e\n\n\u003cp\u003eThe screw carries the batten load back to the rafter, joist or panel through the\ninsulation, without a bracket or secondary joist crossing the layer. ETA-11\/0030 covers it\nin solid timber, glulam, CLT, solid wood panel and LVL, in hard, soft and façade\ninsulation, at 60° or 90°. Design is to EN 1995-1-1 and the UK National Annex.\u003c\/p\u003e\n\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCertified in non-pre-drilled LVL, the highest withdrawal case on the sheet, at\n      fax,k 15.0 N\/mm², ρa 500 kg\/m³, characteristic density 410 to 550 kg\/m³\u003c\/li\u003e\n  \u003cli\u003eAlso covered in solid timber, glulam, CLT and solid wood panel\u003c\/li\u003e\n  \u003cli\u003eDouble thread with a 3 THORNS tip, 100 mm point side and 60 mm head side, which is\n      what allows the tight minimum spacings below\u003c\/li\u003e\n  \u003cli\u003eThirteen lengths, Ø7 from 220 to 380 mm and Ø9 from 240 to 520 mm\u003c\/li\u003e\n  \u003cli\u003eCylindrical head, Ø9.50 mm at Ø7 and Ø11.50 mm at Ø9, seated inside the batten\u003c\/li\u003e\n  \u003cli\u003eCertified for hard, soft and façade insulation, fixed at 60° or 90°, both tabulated\n      in the ETA\u003c\/li\u003e\n  \u003cli\u003eTX30 on Ø7 and TX40 on Ø9, bit included in every box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eThermal bridging\u003c\/h2\u003e\n\u003cp\u003eFixing the insulation continuously, rather than interrupting it with timber\ncounter-joists, was calculated to improve the U-value of the roof build-up by 10 to 15%.\nThe calculation was carried out by EURAC Research as part of the MEZeroE project, funded\nby the European Union's Horizon 2020 programme under grant agreement No 953157. It\ncompares a continuous insulation package against one interrupted by secondary joists; it\nis a calculation, not a site measurement, and the result for any specific roof depends on\nthat roof's build-up.\u003c\/p\u003e\n\n\u003cp\u003eThat benefit depends on restraint. The datasheet is explicit that excessive anchoring\nor incorrect arrangements should be avoided in order not to compromise the thermal\nperformance of the package. More fixings than the design calls for works against the\nreason for choosing this detail.\u003c\/p\u003e\n\n\u003ch2\u003eMinimum spacings\u003c\/h2\u003e\n\u003cp\u003eThe 3 THORNS tip is what buys the tight spacings. They are independent of insertion\nangle and of grain angle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBetween screws, a1 and a2: 5·d, so 35 mm at Ø7 and 45 mm at Ø9\u003c\/li\u003e\n  \u003cli\u003eTo end grain, a1,CG: 10·d, so 70 mm at Ø7 and 90 mm at Ø9\u003c\/li\u003e\n  \u003cli\u003eTo the edge, a2,CG: 4·d, so 28 mm at Ø7 and 36 mm at Ø9\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese hold only in members of at least 12·d thickness, 84 mm at Ø7 and 108 mm at Ø9,\nand at least 8·d width or 60 mm, whichever is greater. The datasheet does not print that\nprecondition next to the spacings, so check the member before you rely on them.\u003c\/p\u003e\n\n\u003ch2\u003eBefore you fix\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck the tip cannot break through the underside of the member. This is the most\n      common error on long insulation screws\u003c\/li\u003e\n  \u003cli\u003eBatten minimums are not optional: 50\/30 mm base and height at Ø7, 60\/40 mm at Ø9\u003c\/li\u003e\n  \u003cli\u003ePre-drilling is required above 550 kg\/m³ characteristic density. Note that\n      pre-drilling LVL puts you outside the 15.0 N\/mm² case above\u003c\/li\u003e\n  \u003cli\u003eElectrogalvanised zinc at minimum 5 µm, so service class 1 and 2 only, C2\n      atmospheric and T2 wood corrosivity. Not for exterior or coastal exposure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe same screw, two code ranges.\u003c\/strong\u003e DGZ and DWZ are the same Rothoblaas\nscrew under two codes: DGZ is the designation used in ETA-11\/0030, DWZ is the Holz Technic\ncode. Same manufacturer, same geometry, same approvals. The range here is the wider one,\nrunning to 520 mm at Ø9 where \u003ca href=\"\/products\/insulation-screw-dwz\"\u003eDWZ\u003c\/a\u003e stops at\n400 mm, and the DWZ selection table is this same table narrowed to the stocked lengths, so\nsome deeper cells are blank there. For deeper build-ups, this is the page. The screw is\nalso certified in flange-head (DGT) and countersunk-head (DGS) versions, which we do not\nstock. An EVO version with a Zn-Al flake coating is available on request for service class\n3 applications.\u003c\/p\u003e\n\n\u003ch2\u003eDesign and specification support\u003c\/h2\u003e\n\u003cp\u003eRothoblaas MyProject is a free calculation tool that produces a fastening calculation\nreport for this screw. It is a design aid for the specifier. It does not replace the\nstructural design of the roof, and the connection must still be checked and signed off by\nthe project's structural engineer. See also our\n\u003ca href=\"\/blogs\/insights\/eurocode-5-explained-timber-design-uk\"\u003eguide to Eurocode 5 timber\ndesign\u003c\/a\u003e, our \u003ca href=\"\/pages\/services\"\u003estructural engineering support\u003c\/a\u003e, and the full\n\u003ca href=\"\/collections\/screws-for-timber\"\u003estructural timber screw range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eCommon questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a larger diameter mean fewer fixings?\u003c\/strong\u003e\nRothoblaas's own worked example on the datasheet runs both diameters over the same roof:\nGL24h 120x160 joists at 0.70 m centres, 20 mm planking, 160 mm soft insulation at σ(10%)\n0.03 N\/mm², C24 60x40 battens, 30% pitch, 1.70 kN\/m² snow. It resolves to 324 screws at\nØ7 or 252 at Ø9. That is an illustration from one build-up, not a sizing rule. The number\nfor your roof is your engineer's.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy does the ETA give two different fax,k values?\u003c\/strong\u003e\nBecause withdrawal depends on the timber. In solid timber, glulam, CLT and solid wood\npanel, fax,k is 11.7 N\/mm² at ρa 350 kg\/m³ with characteristic density up to 440 kg\/m³.\nIn non-pre-drilled LVL at ρa 500 kg\/m³ and characteristic density 410 to 550 kg\/m³ it\nrises to 15.0 N\/mm². Pre-drill the LVL and the higher figure no longer applies.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePrice shown is per box of 50 pieces. See the table below for codes, lengths and\npack prices.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"7 mm · min. batten 50\/30 mm \/ 220 mm","offer_id":54916833640790,"sku":"DGZ7220","price":57.6,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 260 mm","offer_id":54916833673558,"sku":"DGZ7260","price":76.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 300 mm","offer_id":54916833706326,"sku":"DGZ7300","price":84.54,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 340 mm","offer_id":54916833739094,"sku":"DGZ7340","price":98.14,"currency_code":"GBP","in_stock":true},{"title":"7 mm · min. batten 50\/30 mm \/ 380 mm","offer_id":54916833771862,"sku":"DGZ7380","price":110.94,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 240 mm","offer_id":54916833804630,"sku":"DGZ9240","price":88.26,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 280 mm","offer_id":54916833837398,"sku":"DGZ9280","price":112.26,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 320 mm","offer_id":54916833870166,"sku":"DGZ9320","price":122.4,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 360 mm","offer_id":54916833902934,"sku":"DGZ9360","price":141.6,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 400 mm","offer_id":54916833935702,"sku":"DGZ9400","price":163.47,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 440 mm","offer_id":54916833968470,"sku":"DGZ9440","price":203.46,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 480 mm","offer_id":54916834001238,"sku":"DGZ9480","price":244.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm · min. batten 60\/40 mm \/ 520 mm","offer_id":54916834034006,"sku":"DGZ9520","price":278.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/DWZ_RP_42b2e7a8-298b-4412-b53d-e1ad4112a12d.jpg?v=1786179797"},{"product_id":"fully-threaded-screw-vgz","title":"VGZ · Fully threaded cylindrical head screw","description":"\u003cp\u003eVGZ is a fully threaded structural screw with a cylindrical head, in electrogalvanised carbon steel. It is approved for structural applications subject to stresses in any direction to the grain, from 0 to 90 degrees.\u003c\/p\u003e\n\n\u003cp\u003eThe cylindrical head is the point of it. It lets the screw penetrate and pass through the surface of the timber rather than stopping on it, so the fixing goes away inside the member. That is what makes VGZ a reinforcement and coupling screw rather than a surface fastener, and it is why it suits concealed joints, timber couplings and structural reinforcement.\u003c\/p\u003e\n\n\u003ch2\u003eWhere it's used\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eReinforcement orthogonal to the grain, for hanging load where a secondary beam meets a main beam\u003c\/li\u003e\n  \u003cli\u003eSide-by-side joining of CLT floors, which the datasheet describes as very high stiffness\u003c\/li\u003e\n  \u003cli\u003eCoupling beams, in structural renovation and in new work\u003c\/li\u003e\n  \u003cli\u003eJoining small timber elements, such as the crossbeams and uprights of light frame structures\u003c\/li\u003e\n  \u003cli\u003eInstallation at double 45 degree inclination\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat it fixes into\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTimber based panels\u003c\/li\u003e\n  \u003cli\u003eSolid timber\u003c\/li\u003e\n  \u003cli\u003eGlulam\u003c\/li\u003e\n  \u003cli\u003eCLT and LVL\u003c\/li\u003e\n  \u003cli\u003eHigh density woods\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe values for CLT and for high density woods such as Microllam LVL are tested, certified and calculated for those materials, not carried across from solid timber. The screw can also be used parallel to the grain.\u003c\/p\u003e\n\n\u003cp\u003eThe coating is electrogalvanised zinc, and that is what sets the working environment. VGZ is for service class 1 and 2, atmospheric corrosivity C1 to C2 and wood corrosivity T1 to T2. In plain terms, dry and covered work. It is not approved for external use, for unheated and damp conditions, or for coastal exposure. Service class 3 needs stainless steel or a zinc-aluminium flake coating, and this screw has neither.\u003c\/p\u003e\n\n\u003cp\u003eCyclic SEISMIC-REV testing has been carried out according to EN 12512 (VGZ technical data sheet, p.1). EN 12512 is a test method rather than a performance class. The European Technical Assessment covers connections under static and quasi-static loading, and seismic design of the connection stays with the project's structural engineer.\u003c\/p\u003e\n\n\u003ch2\u003eThe tip, and which screws have it\u003c\/h2\u003e\n\u003cp\u003eMost of the range has the 3 THORNS tip, which reduces the minimum installation distances. More screws fit in less space, and larger screws fit in smaller elements, which the datasheet gives as a reduction in the cost and time of project implementation. It is on every 7 mm screw, on 9 mm screws up to 520 mm long, and on 11 mm screws up to 600 mm long. The two longest 9 mm screws and the eight longest 11 mm screws have a different self-drilling tip instead, so the reduced distances are not theirs. Check the length before you rely on the spacing.\u003c\/p\u003e\n\n\u003ch2\u003eSizes\u003c\/h2\u003e\n\u003cp\u003eThree diameters. 7 mm runs from 80 to 400 mm, 9 mm from 160 to 600 mm, and 11 mm from 150 to 1000 mm. Drive is TX30, TX40 and TX50 respectively, and the bit is included.\u003c\/p\u003e\n\n\u003cp\u003eBox quantity is not the same across the range. Every 7 mm screw, and every 9 mm screw up to 400 mm, comes 50 to a box. From 9 mm at 440 mm upwards, and across the whole 11 mm range, the box holds 25. The pack quantity is shown on every row of the table below, so read it from the row rather than assuming one figure for the range.\u003c\/p\u003e\n\n\u003ch2\u003eBefore you fix\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAbove a characteristic timber density of 550 kg per cubic metre the screw must be driven into a pre-drilled hole. This one is not on the datasheet. It comes from the European Technical Assessment, and VGZ is not on its list of exceptions\u003c\/li\u003e\n  \u003cli\u003ePre-drilling hole diameters are given for two cases and they are not the same. One is for softwood, the other for hardwood and beech LVL\u003c\/li\u003e\n  \u003cli\u003eThe screws are approved for connections under static or quasi-static loading\u003c\/li\u003e\n  \u003cli\u003ePull the elements together before the screws go in. The datasheet's method is to close the initial gap with a partially threaded screw first, then insert the VGZ, then take the temporary screw back out\u003c\/li\u003e\n  \u003cli\u003ePosition the screws to the minimum distances. They are given separately for axial stresses, for shear loads, for CLT and for LVL, and separately again for installation with and without a pre-drilled hole. Do not read one case off another case's table\u003c\/li\u003e\n  \u003cli\u003eA row of screws does not give you the sum of the individual capacities. The datasheet gives an effective number to apply, both for screws in a row parallel to the grain and for pairs of crossed screws\u003c\/li\u003e\n  \u003cli\u003eThe 45 degree applications rely on getting the angle right. The datasheet's method is to hold the angle for the first third of the drive, then finish without the guide\u003c\/li\u003e\n  \u003cli\u003eDimensioning and verification of the timber elements is carried out separately, and instability of the connectors is verified separately\u003c\/li\u003e\n  \u003cli\u003eThe assumed working life is 50 years. The European Technical Assessment states plainly that this is an assumption made for the assessment, not a guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDesign and specification support\u003c\/h2\u003e\n\u003cp\u003eThe characteristic values, the minimum distances and the effective number tables are all in the Specifications tab and the linked datasheet. This is product-selection guidance. Final loads, quantities, spacing and sign-off must be confirmed by the customer's qualified structural engineer against the product ETA. See also our \u003ca href=\"\/blogs\/insights\/eurocode-5-explained-timber-design-uk\"\u003eguide to Eurocode 5 timber design\u003c\/a\u003e, our \u003ca href=\"\/pages\/services\"\u003estructural engineering support\u003c\/a\u003e, and the full \u003ca href=\"\/collections\/screws-for-timber\"\u003estructural timber screw range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePrice shown is per box. The box holds 50 or 25 depending on the code, so check the pack quantity on the row. The table below gives codes, diameters, lengths and pack quantity.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"7 mm \/ 80 mm","offer_id":55234815033686,"sku":"VGZ780","price":18.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 100 mm","offer_id":55234815066454,"sku":"VGZ7100","price":20.5,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 120 mm","offer_id":55234815099222,"sku":"VGZ7120","price":25.5,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 140 mm","offer_id":55234815131990,"sku":"VGZ7140","price":31.5,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 160 mm","offer_id":55234815164758,"sku":"VGZ7160","price":38.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 180 mm","offer_id":55234815197526,"sku":"VGZ7180","price":45.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 200 mm","offer_id":55234815230294,"sku":"VGZ7200","price":52.5,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 220 mm","offer_id":55234815263062,"sku":"VGZ7220","price":61.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 240 mm","offer_id":55234815295830,"sku":"VGZ7240","price":70.5,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 260 mm","offer_id":55234815328598,"sku":"VGZ7260","price":81.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 280 mm","offer_id":55234815361366,"sku":"VGZ7280","price":91.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 300 mm","offer_id":55234815394134,"sku":"VGZ7300","price":101.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 320 mm","offer_id":55234815426902,"sku":"VGZ7320","price":105.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 340 mm","offer_id":55234815459670,"sku":"VGZ7340","price":117.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 360 mm","offer_id":55234815492438,"sku":"VGZ7360","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 380 mm","offer_id":55234815525206,"sku":"VGZ7380","price":141.5,"currency_code":"GBP","in_stock":true},{"title":"7 mm \/ 400 mm","offer_id":55234815557974,"sku":"VGZ7400","price":131.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 160 mm","offer_id":55234815590742,"sku":"VGZ9160","price":42.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 180 mm","offer_id":55234815623510,"sku":"VGZ9180","price":52.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 200 mm","offer_id":55234815656278,"sku":"VGZ9200","price":61.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 220 mm","offer_id":55234815689046,"sku":"VGZ9220","price":72.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 240 mm","offer_id":55234815721814,"sku":"VGZ9240","price":83.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 260 mm","offer_id":55234815754582,"sku":"VGZ9260","price":94.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 280 mm","offer_id":55234815787350,"sku":"VGZ9280","price":105.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 300 mm","offer_id":55234815820118,"sku":"VGZ9300","price":114.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 320 mm","offer_id":55234815852886,"sku":"VGZ9320","price":122.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 340 mm","offer_id":55234815885654,"sku":"VGZ9340","price":132.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 360 mm","offer_id":55234815918422,"sku":"VGZ9360","price":142.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 380 mm","offer_id":55234815951190,"sku":"VGZ9380","price":152.5,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 400 mm","offer_id":55234815983958,"sku":"VGZ9400","price":163.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 440 mm","offer_id":55234816016726,"sku":"VGZ9440","price":110.0,"currency_code":"GBP","in_stock":true},{"title":"9 mm \/ 480 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The tip drills the metal as the screw goes in, so there is no pilot hole to make first.\u003c\/p\u003e\n\n\u003cp\u003eIt is a bimetal screw. The head and body are A2 | AISI304 stainless steel, for corrosion resistance. The tip is carbon steel, because carbon steel drills better. The bleeder tip cuts through steel and aluminium, and fins on the shank protect the thread while it passes through the timber. Sharp ribs under the head leave a clean finish on the wood.\u003c\/p\u003e\n\n\u003cp\u003eIt is suitable for outdoor use in service classes 1 to 3. The atmospheric and wood corrosivity classes it is rated for are in the Specifications tab.\u003c\/p\u003e\n\n\u003ch2\u003eWhere it's used\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eTimber fixed to S235 steel substructures\u003c\/li\u003e\n  \u003cli\u003eTimber fixed to aluminium substructures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat it drills through\u003c\/h2\u003e\n\u003cp\u003eHow thick a plate it drills depends on the diameter. The 4.8 mm screw drills S235 steel from 1 to 3 mm and aluminium from 2 to 3 mm. The 5.5 mm screw drills steel from 2 to 5 mm and aluminium from 3 to 5 mm. The 6.3 mm screws drill steel from 3 to 6 mm and aluminium from 4 to 8 mm. Each range has a bottom as well as a top, so check your plate against the code before you order.\u003c\/p\u003e\n\n\u003ch2\u003eSizes\u003c\/h2\u003e\n\u003cp\u003eThree diameters, four codes. 4.8 × 45 mm and 5.5 × 55 mm take a TX25 drive. 6.3 × 70 mm and 6.3 × 120 mm take TX30. The bit is included.\u003c\/p\u003e\n\n\u003cp\u003eBox quantity is not the same across the range. The 4.8 and 5.5 mm screws come 200 to a box, the 6.3 mm screws 100 to a box. Read the pack quantity from the row rather than assuming one figure.\u003c\/p\u003e\n\n\u003ch2\u003eBefore you fix\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eNo pre-drilled hole is needed\u003c\/li\u003e\n  \u003cli\u003eSet the drill speed to the metal: about 1,000 to 1,500 rpm into steel, about 600 to 1,000 rpm into aluminium\u003c\/li\u003e\n  \u003cli\u003eThe steel figures on the datasheet are for S235 steel\u003c\/li\u003e\n  \u003cli\u003eCheck your plate is inside the range for your code, not only under the maximum\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCodes, geometry and the full figures for each code are in the Specifications tab and the linked datasheet. See the full \u003ca href=\"\/collections\/screws-for-timber\"\u003etimber screw range\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePrice shown is per box. The box holds 200 or 100 depending on the code, so check the pack quantity on the row.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rothoblaas","offers":[{"title":"4.8 mm \/ 45 mm","offer_id":55291587002710,"sku":"SBSA24845","price":49.28,"currency_code":"GBP","in_stock":true},{"title":"5.5 mm \/ 55 mm","offer_id":55291587035478,"sku":"SBSA25555","price":64.64,"currency_code":"GBP","in_stock":true},{"title":"6.3 mm \/ 70 mm","offer_id":55291587068246,"sku":"SBSA26370","price":44.96,"currency_code":"GBP","in_stock":true},{"title":"6.3 mm \/ 120 mm","offer_id":55291587101014,"sku":"SBSA263120","price":75.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/files\/SBS-A2-1750256694-image-1080x1080-crop.png?v=1789042961"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/7383\/4582\/collections\/2_045a98ca-df9f-4b8e-b43e-6c88f4fc55de.png?v=1779375843","url":"https:\/\/timbasystems.com\/collections\/screws-for-timber.oembed?page=2","provider":"TimbA Systems","version":"1.0","type":"link"}