TechFast Roofing Sheet to Steel Hex Screw No.5 Tip 5.5 x 40mm Box 100
These Forgefix TechFast Roofing Sheet to Steel Screws have the following specification: Size: 5.5 x 40mmEffective Thread Length: 21mmHead Type: 8mm HexPack Size: 100Drill Tip: No.5 No.5 drill tip for self-drilling in heavy gauge steel up to 12.5mm.