Metal Construction Timber to Heavy Section Screws - Countersunk - Wing-Tip - Self-Drilling - Exterior - Silver Organic - 5.5 x 55

Timco

Specifically designed to attach wood to metal (Max. 12mm). Metric 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 body. 5.5 x 55 BMHW55 Pack Type: Box Pack Quantity: 200 Pieces. Carton Qty (packs): 16, Corrosion Rating (1-5): 4 - Urban & industrial areas with a moderate salt atmosphere, Drill Tip L (mm): 21, Driver Bit Size: PH3, Effective Thread L (mm): 24, Feature 1: Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body, Finish: Exterior (Silver Organic), Head H (mm): 3, Head Type: Countersunk with Ribs, L (mm): 55, Material: Bi-Metal/A2-304 Stainless Steel/Carbon Steel, MFT (mm): 27, MOQ: 1, MOQ Increment: 1, Pack Dimensions L x W x H (mm): 135 x 90 x 90, Pack Qty: 200, Pack Type: Box, Pack Weight (kg): 1.46, Point Type: Self-Drilling No.5, Rec. RPM: 1,000 - 1,800, Recess Type: Phillips, Size (mm): 5.5 x 55, Substrates: Steel, Timber, Thread Coverage: Fully Threaded, Thread Ø (mm): 5.5, Thread Type: Metric