Value Collection USFW1380025OZ Uss Flat Washer Steel

Product Description

The VALUE COLLECTION USFW1380025OZ is a USS-pattern flat washer designed for use with 1-3/8 inch screws and bolts. Manufactured from steel with a zinc-plated finish, this washer distributes load across the fastener bearing surface, reducing the risk of pull-through and surface damage in structural and mechanical assemblies. The USS pattern specifies a larger outer diameter relative to screw size compared to SAE washers, making it well suited for applications where broader load distribution is needed. Licensed tradespeople and experienced contractors rely on this washer type in heavy-duty framing, equipment mounting, and general industrial fastening work.

This washer is used across residential and commercial construction, HVAC equipment mounting, plumbing fixture installations, and general mechanical assembly wherever a 1-3/8 inch fastener is employed. The 1-1/2 inch inner diameter provides proper clearance for the screw or bolt shank, while the 3-1/4 inch outer diameter delivers wide load distribution on wood, metal, or composite substrates. The zinc-plated steel construction offers corrosion resistance suitable for indoor and light-duty outdoor applications.

Key Features

• USS flat washer pattern for broader load distribution compared to SAE equivalents
• 1-1/2 inch inner diameter fits 1-3/8 inch screw or bolt shank with standard clearance
• 3-1/4 inch outer diameter spreads clamping load over a wide bearing area
• 0.153 inch thickness provides solid, consistent bearing surface
• Zinc-plated steel finish for corrosion resistance in indoor and protected outdoor environments
• Inch measurement system; compatible with standard US fastener sizing

Compatibility

Designed as an OEM-style replacement or maintenance stock washer for use with 1-3/8 inch USS-standard bolts and screws in structural, mechanical, and equipment-mounting applications.

Installation Notes

Installation is performed by electricians, plumbers, HVAC technicians, pipefitters, and general contractors as part of fastener assemblies. Always ensure the fastener and washer material are compatible with the substrate to prevent galvanic corrosion. Tighten fasteners to the torque specification called out in the equipment or structural design documentation. Use appropriate hand tools or power tools sized for the fastener being driven.