Value Collection C39874 Uss Flat Washer 7/16 in Steel

Product Description

The VALUE COLLECTION C39874 is a USS flat washer designed for use with 7/16 inch screws and fasteners. It is manufactured from Grade 8 steel with a zinc-plated finish that provides corrosion resistance in general-purpose applications. The washer features a 1/2 inch inner diameter, a 1-1/4 inch outer diameter, and a 5/64 inch thickness, conforming to USS (United States Standard) dimensional specifications. This washer distributes load across the bearing surface, reducing fastener pull-through and protecting the joined material. It is used by electricians, plumbers, HVAC technicians, and general trades in mechanical assembly and structural fastening tasks.

This washer is suited for residential and light commercial applications where standard inch-series hardware is required. It is commonly installed in equipment mounting, panel fabrication, pipe support bracketing, and general mechanical assembly. The USS flat washer series uses a wider outer diameter relative to the screw size compared to SAE washers, making it appropriate where greater load distribution is needed across softer or thinner base materials. Sold individually per package with a minimum order quantity of 100 pieces.

Key Features

• USS flat washer profile provides wider load distribution than SAE equivalents for the same screw size
• Grade 8 steel construction for strength in demanding mechanical assemblies
• Zinc-plated finish resists corrosion in general indoor and light-duty outdoor environments
• 1/2 inch inner diameter fits 7/16 inch screw shanks with standard clearance
• 1-1/4 inch outer diameter and 5/64 inch thickness meet USS dimensional standards
• Inch-series dimensions for compatibility with standard US fastener systems

Compatibility

Designed as a standard USS flat washer for use with 7/16 inch screws and bolts in inch-series fastener assemblies across mechanical, electrical, and plumbing trade applications.

Installation Notes

Install using standard hand tools; seat the washer flush against the bearing surface before tightening the fastener. Power down or de-energize any equipment before performing mechanical assembly near electrical components. Follow applicable codes such as NEC or IPC when using fasteners in electrical or plumbing system installations. Do not substitute this washer in applications requiring metric or SAE-specific dimensional tolerances.