Bowmalloy BOW500108 Uss Flat Washer 7/8 Inch Steel 25 Pack

Product Description

The BOWMALLOY BOW500108 is a USS flat washer designed for use with 7/8-inch screws and fasteners. Made from steel with a Bowma-Guard finish, it provides corrosion resistance in demanding installation environments. The washer measures 15/16 inches inner diameter, 2-1/4 inches outer diameter, and 9/64 inches thick. It meets ASTM F436 fastener standards and carries a Rockwell C38-42 hardness rating, making it appropriate for structural and heavy-duty fastening applications. Sold in packages of 25, these washers are used by contractors, millwrights, ironworkers, and maintenance trades where load distribution under bolt heads or nuts is required.

This washer suits residential and commercial construction, structural steel assembly, mechanical equipment mounting, and general industrial fastening. The USS series flat washer pattern provides a larger bearing surface than SAE washers, distributing clamp load over a wider area. It is a standard choice when working with softer base materials or oversized clearance holes where a broader contact face is needed.

Key Features

• USS flat washer pattern with larger OD for improved load distribution
• Steel construction with Bowma-Guard finish for corrosion protection
• Meets ASTM F436 fastener standard
• Rockwell C38-42 hardness for structural-grade performance
• 15/16 inches ID fits 7/8-inch screw shank with standard clearance
• Sold in a 25-piece package for convenience on the job

Compatibility

Designed for use with 7/8-inch screws and bolts in applications conforming to USS flat washer specifications and ASTM F436 requirements.

Installation Notes

Install flat washers with the smooth face contacting the bearing surface where surface finish matters. Always torque fasteners to the specification required by the applicable structural or mechanical code. Inspect washers for deformation or corrosion before reuse. No special tools beyond standard hand or power wrenches are required for installation.