Bowmalloy BOW500020 Sae Flat Washer 3/4 in Steel 25 Pack

Product Description

The BOWMALLOY BOW500020 is an SAE flat washer designed for 3/4 inch screw applications in structural and mechanical fastening work. Manufactured from steel with a Bowma-Guard finish, this washer meets ASTM F436 standards and carries a Rockwell C38-42 hardness rating, making it suited for high-load bearing installations. The inside diameter measures 13/16 inches (0.7750 inches), the outside diameter measures 1-15/32 inches (1.4680 inches), and the thickness is 9/64 inches (0.1480 inches). Sold in a package quantity of 25, this washer is a standard inch-system component installed by electricians, plumbers, HVAC technicians, ironworkers, and general contractors wherever load distribution under a bolt or nut head is required.

This SAE flat washer is appropriate for residential and commercial construction, mechanical assemblies, and trade installations where ASTM F436 compliance is specified. The Bowma-Guard finish provides a protective coating layer over the steel base material, making it a practical choice in applications where surface protection is a specification requirement. Typical use cases include structural connections, equipment mounting, and general-purpose fastening in both indoor and outdoor settings where inch-system hardware is standard.

Key Features

• Meets ASTM F436 fastener standard for structural flat washers
• Rockwell C38-42 hardness rating for reliable load distribution
• Bowma-Guard protective finish over steel construction
• Inside diameter: 13/16 inches (0.7750 inches) for 3/4 inch screw fitment
• Outside diameter: 1-15/32 inches (1.4680 inches)
• Thickness: 9/64 inches (0.1480 inches)
• Sold in a convenient 25-piece package quantity

Compatibility

Designed as an OEM-style SAE flat washer for 3/4 inch screw sizes in inch-system fastening applications conforming to ASTM F436 requirements.

Installation Notes

Install using standard hand or power tools appropriate to the fastener assembly. Always de-energize electrical equipment and shut off fluid systems before performing any mechanical work in the fastener area. Follow applicable building codes and torque specifications set by the equipment manufacturer or structural engineer of record. Do not substitute washers in applications where specific hardness or dimensional standards are called out in engineering drawings.