ForgeFix TechFast Roofing Sheet to Steel Hex Screw No.3 Tip 5.5 x 70mm Box 100
The screws are fire resistant and corrosion resistant. These Forgefix TechFast Roofing Sheet to Steel Screws have the following specification Size: 5.5 x 70mm. Head Type: 8mm Hex. No.3 drill tip for self-drilling in heavy gauge steel up to 5mm.