Hillman Fasteners 47228 Hex Washer Self-drilling Screw No. 14

Product Description

The HILLMAN FASTENERS 47228 is a zinc-coated hex washer head self-drilling screw designed for secure fastening in metal and light-gauge steel applications. At 2.5 inches in length and sized No. 14, this screw features a self-drilling tip that eliminates the need for a pre-drilled pilot hole, speeding up installation in sheet metal work, HVAC ductwork, metal framing, and similar trade applications. The hex washer head provides a bearing surface that resists pull-through and is driven with a standard nut driver or hex-head bit. The zinc coating offers corrosion resistance in interior and mild-exposure settings. Sold in a box of 12.

These self-drilling screws are suited for light commercial and residential construction tasks where metal-to-metal or metal-to-substrate fastening is required. Common applications include securing HVAC sheet metal panels, metal roofing trim, light steel framing connections, and electrical enclosures. The No. 14 diameter provides strong thread engagement in thin-gauge material. Electricians, HVAC technicians, sheet metal workers, and general contractors regularly specify this screw type for quick, reliable field fastening without pre-drilling.

Key Features

• Self-drilling tip eliminates pilot hole requirement, reducing installation steps
• No. 14 diameter with 2.5-inch length for substantial thread engagement in light-gauge metal
• Hex washer head provides increased bearing surface and pull-through resistance
• Zinc coating delivers corrosion resistance for interior and mild-exposure environments
• Hex drive compatible with standard nut drivers and hex-bit screw guns
• Sold in a box of 12 for jobsite use

Compatibility

Designed as a standard No. 14 hex washer head self-drilling screw for use in light-gauge sheet metal, HVAC ductwork panels, metal framing components, and similar thin-gauge metal fastening applications.

Installation Notes

Installation is performed with a hex-head driver bit or nut driver sized to the hex washer head. Apply consistent, steady pressure when driving to allow the self-drilling tip to engage the substrate cleanly without cam-out. Do not overdrive — excessive torque will strip the fastener or deform the material. Follow applicable building codes and manufacturer guidelines for fastener spacing and edge distance in structural or load-bearing assemblies.