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Self-drilling screws feature a drill-shaped point that enables them to drill, tap, and fasten in a single operation. This eliminates the need for pre-drilling pilot holes, saving significant time and labor cost during installation.
Stainless steel offers excellent corrosion resistance but is generally softer than hardened carbon steel. For drilling into thicker or harder steel sheets, it is recommended to use specialized carbon steel self-drilling screws or bi-metal options.
Wafer head screws have a very low-profile, flat-top head with a wide bearing surface, ideal for applications requiring a flush or near-flush finish. Round head screws have a raised, dome-shaped profile suitable for applications where clearance is not tight.
The built-in washer design of a hex washer head offers a larger clamping surface area, which helps distribute the load and prevents the head from pulling through materials. It is also easily driven using socket and nut drivers for high torque.
We commonly offer zinc-plated, yellow zinc, and customized anti-corrosion coatings. Zinc plating provides basic indoor protection, while specialized outdoor coatings offer robust resistance against moisture and environmental corrosion.
