Timco BMLW65 Metal Construction Timber To Light Section Screws - Countersunk Wing-Tip Self-Drilling Bi-Metal Exterior Silver Organic 5.5 X 65 Box 200

Specifically Designed To Attach Wood To Light Section Steel (Max. 5Mm). Coarse Self-Tapping Thread With Wings Designed To Ream Out The Timber So The Screw Can Achieve Max. R.p.m. Without Burning Out. When The Wings Hit The Metal They Will Break Off To Permit The Thread To Self-Tap Into The Metal. Hardened Carbon Steel Drill Tip Fused On To An A2-304 Austenitic Stainless Steel BodySee `More Information` below for sizing and Colour detailsSpecificationTo Suit Timber (metric) = 29mm - 43mmPackaged Height = 90mmHead = Countersunk with RibsPackaged Width = 90mmThread Diameter (metric) = 5.5mmPackaged Weight = 1.72kgLength (metric) = 65mmEffective Thread Length (metric) = 41mmMax Drilling Thickness (metric) = 5mmType of Recess = PhillipsHeight = 5.5mmPackaged Length = 180mmLength = 65mmMaterial = Bi-Metal/A2-304 Stainless Steel/Carbon SteelType of Point = Self-Drilling No.3Width = 5.5mmPTDTIMBMLW65