Bowmalloy 500020 Sae Flat Washer 3/4 in Carbon Steel

Product Description

The BOWMALLOY 500020 is an SAE flat washer sized for 3/4 inch fasteners, manufactured from Grade 8 carbon steel with a yellow zinc chromate finish. It meets ASTM F436 requirements, making it suitable for structural and heavy-duty bolted connections where load distribution and corrosion resistance matter. The washer measures 0.7750 inches inside diameter and 1.4680 inches outside diameter, with a thickness of 0.1400 inches. Licensed tradespeople and contractors reach for this hardware when assembling structural steel, mechanical equipment, and industrial frameworks. The yellow zinc chromate coating provides a baseline level of corrosion protection appropriate for indoor and sheltered outdoor applications.

This washer is used in residential and commercial construction, mechanical assembly, and equipment installation wherever a standard SAE flat washer is called out for 3/4 inch bolts or screws. Its Grade 8 carbon steel construction makes it appropriate for higher-load fastener assemblies compared to standard Grade 2 or Grade 5 hardware. It is commonly installed by ironworkers, millwrights, pipefitters, and general contractors working with structural or mechanical connections. The ASTM F436 standard applies to hardened steel washers used in structural bolt assemblies, confirming this part is rated for demanding applications.

Key Features

• SAE flat washer profile sized for 3/4 inch fasteners
• Grade 8 carbon steel construction for high-load applications
• Yellow zinc chromate finish for baseline corrosion resistance
• Meets ASTM F436 hardened steel washer standard
• Inside diameter 0.7750 inches, outside diameter 1.4680 inches
• Thickness 0.1400 inches for consistent load distribution

Compatibility

Designed as a standard SAE flat washer for use with 3/4 inch bolts, screws, and structural fastener assemblies conforming to ASTM F436 specifications.

Installation Notes

Install per applicable structural or mechanical assembly specifications. Ensure mating fasteners and connected materials are compatible with Grade 8 hardware before assembly. Follow applicable building codes and torque specifications provided by the fastener or equipment manufacturer. Inspect washers for deformation or coating damage prior to installation in critical connections.