Value Collection C39873 Uss Flat Washer 3/8 in Steel

Product Description

The VALUE COLLECTION C39873 is a USS flat washer designed for use with 3/8-inch screws and fasteners. Manufactured from Grade 8 steel with a zinc-plated finish, this washer provides corrosion resistance and load distribution across a wide range of mechanical and structural applications. It measures 7/16 inches inside diameter, 1 inch outside diameter, and 5/64 inches thick. The USS (United States Standard) series features a larger outer diameter relative to SAE washers, making it well suited for spreading clamping load over softer or larger-clearance surfaces. Plumbers, electricians, HVAC technicians, and general contractors keep these on hand for routine fastening work.

This washer is used in residential and light commercial construction, mechanical equipment assembly, and trade service work where a standard 3/8-inch fastener requires a broad bearing surface. Common applications include pipe hangers, equipment mounting, structural connections, and panel fastening. The zinc coating helps resist rust in moderately humid environments such as mechanical rooms, crawl spaces, and utility areas.

Key Features

• USS series design provides a wider outer diameter than SAE equivalents for greater load distribution
• Grade 8 steel construction for strength in demanding fastening applications
• Zinc-plated finish resists corrosion in moderately humid environments
• Fits 3/8-inch screws and bolts with 7/16-inch inside diameter clearance
• Sold in minimum order quantities of 250 for jobsite and shop supply use

Compatibility

Designed for use with 3/8-inch USS fasteners in standard inch-measurement applications across mechanical, structural, and trade installation work.

Installation Notes

Installation is performed by hand or with standard wrenches and socket sets. Ensure the fastener and washer are matched to the correct load rating for the application before torquing. Follow applicable building or mechanical codes when used in structural or pressure-bearing connections. Inspect washers for deformation or coating damage before reuse.