Hillman Fasteners 47229 Zinc Hex Washer Head Self-drilling Screw

Product Description

The HILLMAN FASTENERS 47229 is a zinc-coated hex washer head self-drilling screw sized at 1/4 inch diameter by 3 inches in length. The hex washer head provides a broad bearing surface and is driven with a standard hex driver or nut driver. The self-drilling point eliminates the need for a pilot hole in compatible materials, reducing installation steps on the job. The zinc coating provides basic corrosion resistance for general-purpose fastening applications. This screw is sold in a box of 12 and is handled by carpenters, sheet metal workers, HVAC technicians, and general contractors.

This screw is suited for light structural, metal-to-metal, and metal-to-substrate fastening applications where a self-drilling tip is required. Common uses include securing metal framing, HVAC ductwork supports, electrical enclosures, and general sheet metal assemblies. The 3-inch length accommodates thicker material stacks and applications requiring deeper thread engagement. The hex washer head seats flush against the material surface to resist pull-through.

Key Features

• Self-drilling point eliminates pilot hole drilling in compatible materials
• Hex washer head provides wide bearing surface and reduces pull-through risk
• Zinc coating offers corrosion resistance for general-purpose use
• 1/4 inch diameter by 3 inch length suits thicker material fastening
• Sold as a box of 12 units

Compatibility

Designed as a general-purpose self-drilling fastener suitable for metal-to-metal and metal-to-substrate applications where a 1/4 inch by 3 inch hex washer head screw meets the installation requirement.

Installation Notes

Install with a hex driver bit or nut driver sized for the 1/4 inch hex head. Power down and de-energize any electrical or mechanical system in the work area before fastening into enclosures or panels. Do not overdrive the screw, as the zinc coating and washer head seating can be compromised by excessive torque. Follow applicable building or mechanical codes for fastener spacing and pull-out requirements.