Value Collection 39758 Uss Flat Washer 7/8 in Steel Zinc

Product Description

The VALUE COLLECTION 39758 is a USS-pattern flat washer designed for use with 7/8 inch fasteners in general mechanical, structural, and industrial assembly applications. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this washer provides corrosion resistance and is suited for environments where light chemical or moisture exposure is a concern. With a 15/16 inch inside diameter, 2-1/4 inch outside diameter, and 11/64 inch thickness, it distributes load across a wider bearing surface than standard SAE washers. Plumbers, pipefitters, electricians, and general maintenance trades stock these for equipment mounting, pipe hangers, and structural fastening tasks.

USS flat washers are commonly used in residential and commercial construction, mechanical rooms, equipment pads, and utility installations where a larger outer diameter is needed to prevent fastener pull-through or to span oversized clearance holes. This washer fits standard 7/8 inch bolts and screws and is suitable for use with structural hardware, unistrut assemblies, equipment mounting plates, and similar applications. The zinc yellow dichromate coating makes it appropriate for both indoor and lightly exposed outdoor installations.

Key Features

• USS pattern provides larger OD than SAE equivalents for improved load distribution
• Grade 8 steel construction for high strength and durability
• Zinc yellow dichromate finish for corrosion resistance in moderate environments
• 15/16 inch ID fits standard 7/8 inch fasteners with proper clearance
• 2-1/4 inch OD spans oversized holes and distributes clamping load effectively
• 11/64 inch thickness provides consistent bearing surface without excessive stack height

Compatibility

Designed for use with 7/8 inch screw and bolt fasteners in USS-pattern applications across mechanical, structural, and trade installation assemblies.

Installation Notes

Install using standard hand or power tools appropriate for 7/8 inch fastener hardware. Ensure mating surfaces are clean and free of debris before seating the washer to maintain proper load distribution. Do not use in applications requiring NSF, ASTM structural, or high-temperature rated hardware without verifying specification compliance. Follow applicable mechanical and structural codes for the installation type.