Product Description

The GW GeWalt Zinc Yellow Hex Head Self-Tapping Screw is a versatile, heavy-duty fastener designed for a secure, tight fit in pre-drilled metal or wood. The sharp, precision-cut threads are engineered to tap their own mating threads, providing superior pull-out resistance and structural stability.

The Zinc Yellow (Yellow Chromate) finish provides enhanced corrosion resistance, making these screws a reliable choice for outdoor machinery, automotive repairs, and general construction. With lengths reaching up to 125mm, this range is perfect for deep-penetration fastening tasks.

Available Specifications:

#10 Gauge: 20mm, 25mm

#12 Gauge: 40mm, 45mm, 50mm, 65mm, 75mm, 90mm, 100mm, 125mm

Key Highlights:

High-Torque Drive: Hex head design prevents slipping and allows for maximum tightening force.

Corrosion Protection: Durable Zinc Yellow coating resists rust in high-moisture environments.

Superior Threading: Self-tapping design creates a tight, custom-fit thread in the substrate.

Extensive Size Range: From 20mm for thin fixings to 125mm for heavy-duty structural layers.

FAQ

Q: Do I need to drill a pilot hole for these screws?

A: Yes. Unlike ''Self-Drilling'' screws (which have a drill bit tip), Self-Tapping screws usually require a pre-drilled pilot hole when used in metal or hard materials. The screw will then ''tap'' its own thread into that hole.

Q: Can these be used in timber/wood?

A: Yes, these are excellent for heavy timber-to-timber or metal-to-timber connections. In wood, the self-tapping threads provide immense gripping power compared to standard wood screws.

Q: Why use a Hex Head instead of a cross/flat head?

A: The hex head is much stronger and allows you to use a socket wrench or impact driver. This is essential for the #12 gauge and longer lengths (up to 125mm) to ensure the screw is driven fully without the head ''stripping'' or ''camming out.''

Q: Is Zinc Yellow better than standard white zinc?

A: Yes. The yellow chromate layer is thicker and provides a better barrier against oxygen and moisture, which significantly slows down the rusting process.

Please feel free to ask us for any details before ordering any products.

Contact us for wholesale prices.