Features; • Head: Hexagon Head. • Finish: Zinc Plated. • Single Thread Screw. • Used predominantly when fixing to timber in many fencing and joinery applications. • Heavy duty fixing. • Conforms to DIN571 standards. • Traditional hexagon head suitable for use with socket drivers. • Zinc Plated for improved durability. • Widely used in conjunction with nylon wall plugs in particular, the satellite industry.