Bowmalloy 500117 Sae Flat Washer 1/2 in Carbon Steel

Product Description

The BOWMALLOY 500117 is an SAE flat washer designed for use with 1/2 inch fasteners in structural and mechanical applications. Made from Grade 8 carbon steel with a yellow zinc chromate finish, this washer distributes clamp load evenly across the bearing surface and provides corrosion resistance in demanding environments. It conforms to ASTM F436, making it suitable for high-strength bolted connections where dimensional consistency and material grade matter. The yellow zinc chromate coating adds a layer of protection against oxidation without interfering with torque values or seating performance. Licensed tradespeople and experienced fastener users will recognize the SAE series dimensions as the appropriate choice when a wider bearing surface is required compared to USS or narrow patterns.

This washer is used in residential, commercial, and industrial construction, as well as heavy equipment assembly and structural steel connections. It is commonly installed under bolt heads or nuts in wood-to-steel, steel-to-steel, and concrete anchor applications. The Grade 8 material rating and ASTM F436 compliance make it a standard choice for structural bolting work governed by building codes and mechanical specifications. Sold individually with a minimum order quantity of 100 pieces.

Key Features

• Grade 8 carbon steel construction for high-strength bolted connections
• Yellow zinc chromate finish provides corrosion resistance
• Conforms to ASTM F436 fastener standard
• SAE series dimensions with 0.5260 inch inside diameter and 1.0620 inch outside diameter
• Thickness of 0.0930 inches for consistent load distribution
• Inch measurement system; fits 1/2 inch screw size

Compatibility

Designed as an OEM-style replacement or standard-use flat washer for 1/2 inch fasteners requiring SAE series dimensions per ASTM F436.

Installation Notes

Installation is performed by ironworkers, structural mechanics, or general contractors as part of bolted assembly work. Always de-energize and lock out any equipment before servicing mechanical assemblies that include these washers. Verify that washer grade matches the bolt grade specified for the connection - do not mix Grade 8 washers with lower-grade fastener assemblies unless the design allows it. Consult applicable building codes or mechanical specifications to confirm required torque and inspection standards for the joint.