Self-Drilling Screw

A roofing screw is a heavy-duty fastener used to attach metal roof sheets, deck sheets, and wall cladding to a steel frame. City Steel provides self drilling screws that drill their own holes and tap their own threads in one step. This means your workers finish roof installation faster because they do not need to pre-drill into the steel purlins. You get 100% leak protection with built-in EPDM rubber washers that stay flexible and do not crack in the Bangladesh heat. Every screw has a zinc-galvanized coating that prevents rust for over 20 years, even in humid factory environments. These screws have the high pull-out strength needed to keep your roof sheets secure during heavy storms and high winds. This fastener is the standard choice for PEB warehouses, industrial sheds, and garment factories from Savar to Chittagong.