Forgefix TechFast Roofing Sheet to Steel Hex Heavy-Duty Screws are used for joining metal roofing panels to steel frame buildings. The screws are fire resistant and corrosion resistant. Protected by Elementech corrosion resistant coating, salt spray tested to 1000 hours. Complies with EU Safety, Health and Environmental requirements. Supplied without washer.Select Option No.5 Tip 5.5 x 100mm Box 100No.5 Tip 5.5 x 32mm Box 100No.5 Tip 5.5 x 40mm Box 100No.5 Tip 5.5 x 50mm Box 100No.5 Tip 5.5 x 60mm Box 100No.5 Tip 5.5 x 70mm Box 100No.5 Tip 5.5 x 80mm Box 100 Add to Basket Quantity