SD Hex Coarse C4 14-10 x 65

The SD Hex Coarse C4 14-10 x 65 is a hex head self-drilling screw with a coarse thread, designed to drill and fix directly into timber or light steel without a pilot hole. It’s manufactured from hot-dip galvanised steel, giving it a thick protective zinc coating for long-term corrosion resistance in outdoor, structural, and heavy-duty applications. The hex head allows fast, high-torque driving with a nut driver or socket — a common choice for fixing roofing, cladding and battens.