Stainless steel screws

Stainless steel is the specification for any fixing that has to survive weather, salt or washdown for the life of the structure. TGR supplies two families: martensitic grade 410, hard enough to self-drill into steel, and austenitic grades 304 and 316 for timber, decking and marine exposure.

Grade 410 self-drills but offers moderate corrosion resistance. Grades 304 and 316 resist corrosion far better but cannot drill hardened steel unaided, which is why the thin sheet range uses a bi-metal construction: a stainless body carrying a hardened carbon steel point.

Grade 410 — self-drilling

Supplied in stainless steel 410, and also available in carbon steel 1022A or bi-metal A2/A4+SCM435.

Valley Fixing Fastener Hex big washer head. Roof valley and wall curtain fixing. Valley Fixing Fastener – EPDM Washer Bonded EPDM washer for a weathertight seal. Heavy Duty Function – Hex Washer Head Steel structure fixing up to 12.5mm plate. Heavy Duty Function – Phillips Pan Head Phillips pan head. #5 point drills max 12mm steel. Structure Fixing Fine Thread – Hex Fine thread. Faster drilling, stronger fastening. Structure Fixing Fine Thread – Phillips Countersunk flat head. Structure and OSB fixing. Wall/Structure Fixing Screws Bigger hex head generates greater torque. Single Thread Thin Sheet Screw Sharp point, fast drill speed on thin sheet metal. Expansion Wings Self-drilling Screws Cement fibreboard, wood and OSB to steel.

Grades 304 and 316 — timber, decking and marine

Austenitic stainless for decking, coastal and high-exposure work.

Stainless Steel Torx Decking – Passivated Bright Double passivated bright. Tapping thread with scratshank. Stainless Steel Torx Decking – More Torque More torque for harder timber species. Stainless Steel Torx Decking – Smaller Heads Smaller heads are easier to conceal. Stainless Steel Torx Decking – Zinc Plated Ruspert, E-coat or zinc plated finish. Double Thread Thin Sheet Screws SS304 body with hardened point. Drills up to 2mm steel. SS304 + carbon

For sizes, grades or specifications not listed, please contact us for further information.