Class 4 Hex - Fine

These high-performance self-drilling screws feature a Class 4 galvanized coating, offering a substantial layer of corrosion protection ideal for coastal, industrial, and high-exposure environments. Equipped with hardened TEK-style drill points, they can penetrate up to 4.5 mm of mild steel without pre-drilling. Many models also include flanged or sealing washers—enhancing load-bearing capacity and wind uplift resistance, making them a solid choice for metal-to-metal fastening, cladding, and structural framing.

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See all Class 4 Metal Drilling