Bowmalloy BOW500122 Sae Flat Washer 1 Inch Steel

Product Description

The BOWMALLOY BOW500122 is an SAE flat washer designed for use with 1-inch screws and fastener assemblies in structural and mechanical applications. Made from steel with a Bowma-Guard protective finish, it meets ASTM F436 standards for hardened washers. The inside diameter measures 1.0210 inches, the outside diameter measures 2.0000 inches, and the thickness is 0.1480 inches (9/64 inches). Hardness is rated Rockwell C38-42, making it suitable for high-load bearing situations where washer deformation must be controlled. Licensed trades and experienced fastener installers will recognize this as a standard structural-grade SAE washer.

This washer is used in residential and commercial construction, steel fabrication, and mechanical assemblies wherever an SAE-specification flat washer is required at a 1-inch screw size. Its ASTM F436 compliance makes it appropriate for structural bolt connections and load-distributing applications. The Bowma-Guard finish provides corrosion resistance for installations exposed to moisture or moderate environmental conditions. Sold in a package quantity of 25 units.

Key Features

• Meets ASTM F436 standard for hardened flat washers
• Rockwell C38-42 hardness rating for load-bearing performance
• Bowma-Guard finish for corrosion resistance
• Inside diameter of 1.0210 inches fits 1-inch screw size
• Outside diameter of 2.0000 inches for broad load distribution
• Steel construction, Material Grade 9

Compatibility

Designed as an OEM-style SAE flat washer replacement for use with 1-inch fasteners in structural and mechanical assemblies meeting ASTM F436 requirements.

Installation Notes

Installation is typically performed by ironworkers, structural mechanics, or licensed contractors working under applicable building codes. Always de-energize or depressurize any system before accessing fastener connections in live assemblies. Use appropriate torque tools calibrated for the bolt grade and joint specification. Do not substitute this washer in applications requiring a different fastener standard without verifying compatibility with the project specification.