Upgrade your install with Self-Drilling Countersunk Screws. These zinc-plated screws cut drilling time by creating their own hole in metal, wood, or PVC. No pre-drilling needed, and the countersunk head sits flush for a clean, professional look. Built from hardened C1022 steel with coarse self-tapping threads and a PH2 drive, they grip securely and resist corrosion in indoor or sheltered outdoor settings. Ideal for metal roofing, cladding, window and door frames, HVAC, and general fabrication. Size: 4.2 mm diameter, No.2 drill point, 1.2âÂÂ3.5 mm steel capacity.
