Value Collection 99765 Uss Flat Washer 9/16 in Steel

Product Description

The VALUE COLLECTION 99765 is a USS flat washer designed for use with 9/16 inch screws. It is manufactured from Grade 8 steel with a plain finish, providing a durable load-distributing surface under bolt heads and nuts. The washer features a 5/8 inch inside diameter and a 1-1/2 inch outside diameter, conforming to USS (United States Standard) dimensional specifications. Plumbers, pipefitters, electricians, HVAC technicians, and general trade professionals use USS flat washers to spread clamping load, prevent fastener pull-through, and protect mating surfaces during bolted assembly and flange connections.

This washer is suited for a wide range of commercial and residential trade applications where a larger outer diameter is needed to distribute load across softer or oversized clearance holes. Typical use cases include structural connections, equipment mounting, pipe hanger assemblies, conduit strut work, and general mechanical fastening where an inch-system fastener is specified. The plain finish is appropriate for interior dry environments and painted assemblies where a coating is applied post-installation.

Key Features

• USS flat washer profile provides a larger outer diameter than SAE equivalents for improved load distribution
• Grade 8 steel construction for high tensile strength in demanding fastening applications
• 5/8 inch inside diameter fits 9/16 inch screw shanks with standard clearance
• 1-1/2 inch outside diameter spreads clamping load over a wide bearing surface
• Plain finish compatible with field painting or dry indoor installations
• Inch-system dimensional standard for straightforward replacement in existing bolted assemblies

Compatibility

Designed as a USS-standard flat washer for use with 9/16 inch inch-system fasteners in general trade, mechanical, and construction assemblies.

Installation Notes

Install this washer between the fastener head or nut and the mating surface, oriented with the flat face fully seated against the workpiece. Ensure the inside diameter clears the screw shank without binding before torquing. Plain-finish steel washers should not be used in wet, corrosive, or outdoor exposure conditions without additional surface protection. No special tools are required beyond standard hand or power fastening equipment appropriate to the bolt size.