Evolution 5.5 x 135mm Phillips Countersunk Timber Tek Screws BMWD5.5-135-5 – Timber TEK5 Wing Drill Screw Phil Csk 4.0mm to 12.5mm in A2 BiMetal

Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body
Used for attaching metal to heavy section steel (Max. 12mm) without the need to pre-drill a hole.
Thread length does not include screw head
Super hard and sharp carbon steel drill tip gives consistent, accurate drilling

A heavier duty self drilling screw or tek screw for attaching timber or composites to steel sections of thickness 4.0mm to 12.5mm – tek 5.

Product Datasheet