Bowmalloy 500217 Sae Flat Washer 1/2 in Carbon Steel

Product Description

The BOWMALLOY 500217 is an SAE flat washer designed for 1/2-inch screw applications in structural and mechanical assembly work. Made from Grade 8 carbon steel with a yellow zinc chromate finish, it provides corrosion resistance and load distribution under fastener heads and nuts. The washer meets ASTM F436 fastener standards, making it suitable for high-strength bolted connections. With an inside diameter of 0.526 inches and an outside diameter of 1.062 inches, it delivers proper bearing surface coverage for 1/2-inch fasteners. Installation is handled by millwrights, ironworkers, pipefitters, plumbers, and general mechanical contractors working with structural or equipment-mounting hardware.

This washer is used in residential and commercial construction, HVAC equipment mounting, piping support systems, and general mechanical assembly where SAE-pattern flat washers are specified. Its yellow zinc chromate finish suits interior and moderate-exposure applications where corrosion protection is required. The Grade 8 carbon steel construction makes it appropriate for high-load bolted assemblies where standard hardened washers are called for per ASTM F436.

Key Features

• Grade 8 carbon steel construction for high-strength bolted connections
• Yellow zinc chromate finish provides corrosion resistance
• Meets ASTM F436 fastener standard
• SAE washer pattern with 1.062-inch outside diameter for broad load distribution
• Inside diameter of 0.526 inches fits standard 1/2-inch fasteners
• Thickness of 0.093 inches provides consistent bearing surface

Compatibility

Designed as an SAE-pattern flat washer for use with 1/2-inch diameter fasteners in ASTM F436-compliant bolted assemblies.

Installation Notes

Installation is performed by qualified tradespeople using standard hand or power tools. Always de-energize equipment and relieve system pressure before working on assemblies where these washers are being replaced or installed. Follow applicable building codes and torque specifications provided by the fastener or equipment manufacturer. Do not substitute washers of a lower grade or non-conforming dimensions in high-strength structural applications.