Value Collection CD558218 Uss Flat Washer 5/8 in Steel 100pk

Product Description

The VALUE COLLECTION CD558218 is a USS flat washer designed for use with 5/8-inch screws and fasteners. Manufactured from steel with a plain finish, this washer distributes load across the bearing surface to reduce fastener pull-through and protect the mating material. The inside diameter measures 11/16 inches, the outside diameter measures 1-3/4 inches, and the thickness is 9/64 inches. These washers ship in a 100-piece package, making them suitable for job-lot purchasing on mechanical, structural, and general maintenance applications.

USS flat washers follow the United States Standard (USS) dimensional series, which provides a larger outside diameter relative to the screw size compared to SAE washers. This wider bearing surface makes them a common choice in construction, plumbing rough-in work, HVAC equipment mounting, and electrical panel support applications where surface protection and load distribution are priorities. Tradespeople and maintenance professionals frequently specify USS washers when working with softer base materials or oversized holes.

Key Features

• USS series flat washer with wider OD for increased load distribution
• Steel construction provides durability in general fastening applications
• Plain finish — suitable for interior and dry-environment use
• 11/16-inch ID fits 5/8-inch screw shanks with standard clearance
• 1-3/4-inch OD delivers broad bearing surface to protect base materials
• 100-piece package quantity supports bulk job requirements

Compatibility

Designed as a standard USS-series flat washer for use with 5/8-inch screws and bolts across general mechanical, structural, and trade installation applications.

Installation Notes

Install with the flat face seated flush against the mating surface before torquing the fastener. Inspect the washer for burrs or deformation prior to use. For outdoor or high-moisture environments, consider a coated or stainless alternative, as the plain steel finish provides no corrosion resistance. Follow applicable fastener torque requirements specified by the equipment manufacturer or applicable code.