Value Collection R52000115 Uss Flat Washer 5/16 in

Product Description

The VALUE COLLECTION R52000115 is a USS flat washer designed for use with 5/16 inch fasteners in general industrial, mechanical, and construction applications. Manufactured from steel with a zinc-plated finish, this washer provides a broad bearing surface that distributes load and reduces the risk of fastener pull-through or surface damage. The USS series follows wider outside-diameter standards compared to SAE washers, making them well suited for softer materials or oversized clearance holes. With an inside diameter of 3/8 inches, an outside diameter of 7/8 inches, and a thickness of 0.0781 inches, this washer meets standard USS dimensional requirements for 5/16 inch screw sizes.

This washer is used across a wide range of trade and maintenance applications including HVAC equipment assembly, plumbing support brackets, electrical enclosure mounting, and general structural fastening. The zinc plating provides a basic level of corrosion resistance suitable for indoor and protected outdoor environments. It is appropriate for use in both light industrial and residential construction settings wherever a 5/16 inch fastener requires a wider bearing surface than an SAE washer provides.

Key Features

• USS flat washer standard — wider OD than SAE for greater load distribution
• Steel construction for durability under mechanical load
• Zinc-plated finish for basic corrosion resistance
• 3/8 inch inside diameter fits 5/16 inch fasteners with standard clearance
• 7/8 inch outside diameter provides broad bearing surface
• Inch measurement system — compatible with standard imperial fastener assemblies

Compatibility

Designed as an OEM-style replacement or stock fastener component for use with 5/16 inch screw and bolt assemblies requiring USS flat washer dimensions in steel with zinc plating.

Installation Notes

Installation is performed by any trade professional working with standard imperial fastener assemblies. Ensure the fastener and mating hardware are compatible in material and finish to avoid galvanic corrosion in exposed environments. Use appropriate torque specifications as defined by the fastener manufacturer or applicable project specifications. Inspect the washer seating surface for burrs or debris before assembly to ensure proper load distribution.