Bowmalloy 500019 Sae Flat Washer 5/8 in Carbon Steel

Product Description

The BOWMALLOY 500019 is an SAE flat washer designed for use with 5/8 inch fasteners in structural and mechanical assemblies. Made from Grade 8 carbon steel with a yellow zinc chromate finish, this washer distributes load across the bearing surface and protects against corrosion in demanding environments. It meets ASTM F436 fastener standards, making it appropriate for structural bolting applications where a recognized performance specification is required. The inside diameter measures 0.6460 inches and the outside diameter measures 1.3120 inches, with a thickness of 0.1400 inches. Contractors, maintenance technicians, and structural ironworkers commonly use this washer in bolted connections across a wide range of trade applications.

This washer is suited for use in general construction, industrial equipment assembly, HVAC equipment mounting, and structural steel connections where SAE-dimension flat washers are specified. The yellow zinc chromate finish provides a corrosion-inhibiting layer appropriate for indoor and moderately exposed environments. It is commonly installed alongside hex bolts, hex cap screws, or carriage bolts in both new construction and maintenance repair work. The SAE dimensional standard means this washer carries a larger outside diameter relative to the screw size compared to USS-pattern washers, providing greater load distribution.

Key Features

• Grade 8 carbon steel construction for high-strength bolting applications
• Yellow zinc chromate finish provides corrosion resistance in moderate exposure environments
• Meets ASTM F436 fastener standard for structural bolting
• SAE pattern outside diameter of 1.3120 inches delivers broad load distribution
• Inside diameter of 0.6460 inches fits 5/8 inch fasteners
• Thickness of 0.1400 inches provides consistent bearing surface

Compatibility

Designed as an SAE-pattern flat washer for use with 5/8 inch screws, bolts, and similar fasteners in structural and mechanical assemblies conforming to ASTM F436 requirements.

Installation Notes

Installation is performed by qualified tradespeople including ironworkers, millwrights, and mechanical contractors. Always install flat washers with the fastener assembly fully de-energized or de-loaded before torquing. Follow applicable structural codes and project specifications for required washer placement under bolt heads and nuts. Do not substitute this washer in applications requiring stainless steel or other corrosion-resistant alloys where the environment exceeds the protective capacity of zinc chromate finishes.