Value Collection TKHWBSI-1401500-3-050B Self Drilling Screw

Product Description

The VALUE COLLECTION TKHWBSI-1401500-3-050B is a 1/4 inch self-drilling screw designed for fast, reliable fastening without a pre-drilled pilot hole. Built from AISI 1016 steel with a zinc-plated finish for corrosion resistance, this screw features a hex washer head and hex drive for positive torque engagement. The 1-1/2 inch length under head and number 3 drill point make it well-suited for attaching sheet metal, light structural panels, and similar trade applications. Sold in a minimum order quantity of 50 per package.

This screw is commonly used in HVAC duct fabrication, metal building assembly, electrical enclosure installation, and general sheet metal work. The hex washer head distributes clamping load across the fastened surface, while the number 3 drill point handles moderate-gauge metal without pre-drilling. It is an inch-system fastener with a 1/4-14 thread size, making it a standard choice across residential and light commercial construction trades.

Key Features

• Number 3 drill point drills its own pilot hole in moderate-gauge steel
• Hex washer head provides broad bearing surface and positive seating
• Hex drive accepts standard 1/4 inch hex bit or nut driver
• Zinc-plated steel finish offers basic corrosion resistance for indoor and sheltered applications
• Meets AISI 1016, ASME B18.6.3, and SAE J78 standards
• Inch-system thread 1/4-14 for compatibility with standard sheet metal fastening specs

Compatibility

Designed as a standard inch-system self-drilling screw for use in sheet metal, light steel framing, HVAC ductwork, and general construction panel attachment applications.

Installation Notes

Installed with a power drill or impact driver fitted with a 1/4 inch hex bit or nut driver attachment. Ensure the workpiece is secured before driving. Do not overdrive — stop when the washer head seats flush to avoid stripping the drill point or distorting the substrate. Follow applicable SMACNA, NEC, or IBC guidelines for fastener spacing and load requirements on structural or code-governed assemblies.