Metal Construction Timber to Light Section Screws - Countersunk - Wing-Tip - Self-Drilling - Bi-Metal - Exterior - Silver Organic - 5.5 x 85

Timco

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. NOTE: Partially threaded. Hardened carbon steel drill tip fused on to an A2-304 Austenitic Stainless Steel body. 5.5 x 85 BMLW85 Pack Type: Box Pack Quantity: 100 Pieces. Carton Qty (packs): 16, Corrosion Rating (1-5): 4 - Urban & industrial areas with a moderate salt atmosphere, Drill Tip L (mm): 13, Driver Bit Size: PH3, Effective Thread L (mm): 47 *P/T, 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): 85, Material: Bi-Metal/A2-304 Stainless Steel/Carbon Steel, MFT (mm): 64, MOQ: 1, MOQ Increment: 1, Ø (mm): 5.5, Pack Dimensions L x W x H (mm): 135 x 90 x 90, Pack Qty: 100, Pack Type: Box, Pack Weight (kg): 1.14, Point Type: Self-Drilling No.3, Rec. RPM: 1,000 - 1,800, Recess Type: Phillips, Size (mm): 5.5 x 85, Substrates: Steel, Timber, Thread Coverage: Partially Threaded, Thread Ø (mm): 5.5, Thread Type: Coarse Self-Tapping, *P/T = Partially Threaded, To Suit Timber (mm): 44 - 63