Value Collection 99764 Uss Flat Washer 1/2 in Steel

Product Description

The VALUE COLLECTION 99764 is a USS flat washer sized for 1/2 inch screws, manufactured from steel with a plain finish. USS flat washers feature a larger outer diameter than SAE washers of the same screw size, distributing load over a wider surface area to reduce pull-through and protect the mating material. This washer measures 9/16 inches inner diameter and 1 3/8 inches outer diameter. It is a standard commodity fastener used daily by plumbers, electricians, HVAC technicians, pipefitters, and general contractors wherever a bolt or screw connection requires load distribution or surface protection.

USS flat washers in this size range are used in mechanical, structural, and equipment-mounting applications across residential and commercial jobsites. Common uses include equipment base plates, pipe hanger assemblies, electrical panel mounting, ductwork fastening, and general structural bolting. The plain steel finish is suited for interior and dry-location applications. This part is sold individually but requires a minimum order quantity of 100 pieces per order.

Key Features

• USS pattern outer diameter provides wider load distribution than SAE equivalent
• 9/16 inch inner diameter fits 1/2 inch fasteners with standard clearance
• 1 3/8 inch outer diameter for broad bearing surface
• Steel construction with plain finish for general interior fastening use
• Grade 8 material designation for higher-strength fastener applications

Compatibility

Designed as an OEM-style and general-use replacement USS flat washer compatible with 1/2 inch screw and bolt fasteners in standard inch-measurement applications.

Installation Notes

USS flat washers are installed by any trade technician performing mechanical or structural fastening work. Always place the washer flush and concentric with the fastener before torquing. Plain steel finish is not corrosion-resistant and should not be used in wet, outdoor, or chemically exposed environments without additional protection. Follow applicable code requirements such as NEC or IFGC for fastener specifications in electrical or gas system assemblies.