Value Collection FWSIS050-100BX Sae Flat Washer 1/2 in Steel

Product Description

The VALUE COLLECTION FWSIS050-100BX is a 1/2 inch SAE flat washer made from steel with a plain (uncoated) finish. SAE flat washers provide a broad bearing surface under bolt heads and nuts, distributing clamping load and reducing the risk of surface damage or pull-through. The SAE standard calls for a larger outer diameter relative to the screw size compared to USS washers, making these suitable for applications requiring extra load distribution. This box contains 100 washers. These washers are a staple fastener component for mechanical, HVAC, plumbing, and electrical trade installations where a 1/2 inch fastener is used.

These SAE flat washers are suited for use in both residential and commercial construction and maintenance applications. Typical uses include bolting HVAC equipment frames, securing plumbing hangers and supports, electrical panel mounting, and general structural assembly wherever a 1/2 inch bolt or screw is specified. The plain steel finish is appropriate for interior or protected installations. Sold in a box quantity of 100 to support job-site or shop restocking needs.

Key Features

• SAE flat washer profile with oversized OD for improved load distribution under 1/2 inch fasteners
• Steel construction for strength in mechanical and structural fastening applications
• Plain finish — suitable for interior or protected-environment installations
• Inside diameter of 17/32 inches fits standard 1/2 inch bolts and screws with minimal slop
• Box quantity of 100 supports job-site and shop inventory needs

Compatibility

Designed for use with 1/2 inch SAE-specification bolts, screws, and threaded fasteners in standard inch-measurement assemblies across HVAC, plumbing, electrical, and general mechanical applications.

Installation Notes

Install with the washer seated flat against the mating surface before torquing the fastener. Plain steel washers are not corrosion-resistant and should not be used in wet, outdoor, or chemically exposed environments without additional protection. Power down or de-energize any equipment before replacing or adding fasteners in electrical or mechanical enclosures. Follow applicable NEC, IPC, or IFGC guidelines for fastener requirements in code-governed installations.