Drilling Class 4 Hex - Fine with Seal

This category from Edcon Steel features high-performance self-drilling screws with a Class 4 galvanised coating—providing a thick, durable layer of corrosion protection perfect for coastal, industrial, or high-exposure settings. They include hardened TEK-style drill points capable of drilling through up to 4.5 mm of mild steel without pre-drilling, and are fitted with a sealing washer—enhancing wind uplift resistance, sealing integrity, and secure load support, making them ideal for metal-to-metal fastening, structural framing, and cladding applications.

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See all Class 4 Metal Drilling