Value Collection C85883 Uss Flat Washer 9/16 in Steel

Product Description

The VALUE COLLECTION C85883 is a USS-pattern flat washer designed for use with 9/16 inch fasteners in general mechanical, plumbing, electrical, and structural applications. Constructed from Grade 8 steel with a zinc-plated finish, this washer distributes load across the bearing surface and provides corrosion resistance in light-duty environments. It features a 5/8 inch inside diameter, a 1-1/2 inch outside diameter, and a 7/64 inch thickness, conforming to USS (United States Standard) dimensional specifications. Tradespeople and maintenance technicians reach for USS flat washers when a wider outer diameter is needed compared to SAE-pattern equivalents, making them a common choice in utility and industrial fastening work.

This washer is suited for residential and light commercial applications where a 9/16 inch bolt or screw requires load distribution or surface protection. Common install scenarios include HVAC equipment mounting, electrical panel and conduit support work, plumbing fixture attachment, and general structural fastening where USS dimensions are specified. The zinc plating helps resist oxidation in dry to mildly humid indoor service environments.

Key Features

• USS flat washer pattern — wider OD than SAE for greater load distribution
• Grade 8 steel construction for strength in mechanical fastening applications
• Zinc-plated finish provides corrosion resistance in indoor environments
• 5/8 inch ID fits 9/16 inch screw or bolt shank with standard clearance
• 1-1/2 inch OD spreads clamping load across a broader bearing surface
• Inch measurement system — compatible with standard imperial fastener sets

Compatibility

Designed as a USS-pattern replacement flat washer for use with 9/16 inch imperial fasteners in general mechanical, HVAC, plumbing, and electrical trade applications.

Installation Notes

Installation requires no specialized tools beyond a standard wrench or socket set sized for the mating fastener. De-energize electrical systems and shut off fluid supply before servicing any equipment where fastener work is performed. Do not use zinc-plated steel washers in continuously wet or submerged environments where stainless or hot-dip galvanized hardware is required by code. Confirm washer grade and dimensions match the joint specification before torquing the assembly.