Screws for timber

Choosing the right structural timber screw
Structural timber screws are the backbone of modern timber and mass timber construction, replacing traditional nails and bolts in load-bearing connections. The right screw depends on the joint: countersunk partial-thread screws like the HBS and SNK ranges suit standard carpentry and pull-together joints, while full-thread screws such as the KOP and HTS-HT carry tension and shear loads in CLT, glulam and timber frame structures. Washer-head and flange-head screws spread load across panels, and longer screws handle deep penetration into engineered timber.

ETA certification and Eurocode 5
Every Rothoblaas structural screw we supply carries European Technical Assessment (ETA) approval, meaning its load-bearing performance is independently verified and usable in Eurocode 5 (BS EN 1995) calculations. For projects requiring structural sign-off, our in-house engineering team can produce connection designs, withdrawal and shear capacities, and full calculation packages.

Trade accounts and UK delivery
We supply carpenters, timber frame contractors, mass timber installers and structural engineers across the UK. Screws are stocked in box quantities with trade pricing and project volume discounts available. Order by midweek for dispatch the same week, with free delivery on qualifying orders. If you're unsure which screw suits your connection, contact our team for technical advice.