General description Forgefix TechFast Roofing Sheets to Steel Hex Screws are specifically designed for securely attaching metal roofing panels to steel frame buildings. These screws feature a self-drilling No.5 tip, making them suitable for heavy gauge steel up to 12.5mm thick. Each screw is accompanied by a 16mm EPDM rubber washer to ensure a watertight seal, enhancing durability and safety in outdoor environments. Technical specifications Size: 5.5 x 32mm Effective Thread Length: 9mm Pack Size: 100 screws per box Drill Tip: No.5 Compatibility and accessories Compatible with metal roofing panels and steel framing Supplied with 16mm EPDM rubber washers for sealing Installation Use a compatible drill or screwdriver to drive the screw into the steel panel and frame Ensure the screw penetrates the steel fully for secure fastening Use the rubber washer to prevent water ingress and ensure a watertight seal Usage Ideal for roofing applications requiring secure attachment of metal panels to