Hillman Fasteners 47225 Hex Washer Self-drilling Screw 1.5in X14

Product Description

The HILLMAN FASTENERS 47225 is a zinc-coated hex washer head self-drilling screw designed for fast, reliable fastening without a pilot hole. The 1.5-inch length and number 14 diameter make it well-suited for medium-duty applications where thread engagement and holding strength matter. The hex washer head provides a wide bearing surface and is driven with a standard hex driver or socket. The zinc coating delivers corrosion resistance for use in interior and protected exterior environments. Packaged in a box of 12, this SKU is sold by the box. Installers working in light commercial and residential construction will find this screw a straightforward, no-prep fastener choice.

Self-drilling screws in this size range are commonly used in metal-to-metal and metal-to-substrate fastening tasks across HVAC ductwork, light steel framing, electrical enclosures, and general construction assemblies. The number 14 diameter provides strong thread engagement in light-gauge steel. These screws are suitable for professional tradespeople including HVAC technicians, sheet metal workers, and general contractors who require a drill-point fastener that eliminates the need for a separate pilot drilling step.

Key Features

• Self-drilling point eliminates need for a pre-drilled pilot hole
• Hex washer head provides wide bearing surface and positive driver engagement
• Zinc coating offers corrosion resistance for interior and protected exterior use
• Number 14 diameter delivers strong thread engagement in light-gauge steel
• 1.5-inch length suits medium-depth fastening applications
• Sold in a box of 12 for jobsite convenience

Compatibility

Designed as an OEM-style replacement and general-use self-drilling screw suitable for light-gauge steel, HVAC ductwork, metal framing, and electrical enclosure fastening applications.

Installation Notes

Drive with a hex driver bit or socket rated for the number 14 hex washer head. Apply consistent, steady pressure when driving to allow the drill point to cut cleanly without walking. Do not overdrive — the hex washer head seats firmly against the substrate and overdriving can strip the thread engagement or deform the bearing surface. Follow applicable building codes and manufacturer specifications for fastener spacing and load requirements.