5.5 x 65mm A2 Bi-Metal Heavy Section Tek Screws (Box of 100) with 16mm EPDM Bonded Washer

5.5 x 65mm A2 Bi-Metal Heavy Section Tek Screws - Box of 100 Fixabolt SKU: FB-BMBW5.5-65-5 Box Quantity: 100 screws Construction: Bi-metal Body and Head Material: A2 stainless steel Drill Point Material: Hardened carbon steel Head Style: External hex head Hex Head Size: 5/16" Thread Form: Fine thread (TEK 5) Thread Length: Full Drilling Capacity: 4.0 - 12.0mm steel Washer: 16mm bonded EPDM sealing washer These 5.5 x 65mm A2 bi-metal heavy section Tek screws combine an A2 stainless steel body and head with a hardened carbon steel drill point. This gives trades the corrosion resistance of stainless steel together with consistent drilling performance in heavier steel sections. The TEK 5 drill point and fine thread are intended for fixing aluminium sheeting, panels, brackets, channels and other components into suitable steel sections within the stated drilling capacity. They may also suit comparable sheet-to-steel and component-to-steel applications where the fixing specification is appropriate. The factory-fitted 16mm bonded EPDM washer helps create a weather-resistant seal around the fixing point while spreading the clamping load over the sheet surface. See our range of stainless steel tek 5 screws.