Forgefix - TechFast Roofing Sheet to Steel Hex Screw & Washer No.3 Tip 5.5 x 45mm

General description Forgefix TechFast Roofing Sheets to Steel Hex Screws are specifically designed for joining metal roofing panels to steel frame buildings. These screws are fire-resistant and corrosion-resistant, featuring an Elementech coating that has been salt spray tested for 1000 hours. They come with 16mm EPDM rubber washers to ensure a secure and weatherproof fit. Technical specifications Size: 5.5 x 45mm Effective Thread Length: 28mm Head Type: Hex Finish: Elementech corrosion-resistant coating Washer Size: 16mm Steel Section: Light duty Pack Quantity: 100 screws per box Drill Tip: No.3 for self-drilling in steel up to 5mm thick Compatibility and accessories Compatible with metal roofing panels and steel frame structures Supplied with 16mm EPDM rubber washers for sealing and weatherproofing Installation Use a No.3 drill tip for self-drilling into steel Ensure the screw is driven straight to avoid damaging the washer or the screw Use appropriate tools to tighten the screws