Bowmalloy 500015 Sae Flat Washer 3/8 Inch Carbon Steel

Product Description

The BOWMALLOY 500015 is an SAE flat washer designed for use with 3/8-inch screws and fasteners. Made from Grade 8 carbon steel with a yellow zinc chromate finish, it distributes load across a bearing surface and helps protect against corrosion in demanding service environments. The washer measures 0.3960 inches inside diameter, 0.8120 inches outside diameter, and 0.0780 inches thick. It conforms to ASTM F436 standards, making it appropriate for structural and heavy-duty mechanical assemblies. Licensed trades and general contractors rely on this washer in bolted connections where consistent clamping load and corrosion resistance are required.

This washer is suited for residential and commercial construction, mechanical assemblies, HVAC equipment mounting, plumbing fixture installations, and general industrial fastening applications where a 3/8-inch fastener is used. The SAE dimensions provide a wider bearing surface compared to USS flat washers of the same screw size, which helps prevent pull-through on softer substrates and distributes clamping force more evenly across the joint.

Key Features

• Grade 8 carbon steel construction for high strength and durability
• Yellow zinc chromate finish provides corrosion resistance
• SAE dimensions with 0.8120-inch outside diameter for broad load distribution
• Inside diameter of 0.3960 inches fits standard 3/8-inch fasteners
• Meets ASTM F436 fastener standard for structural applications
• Thickness of 0.0780 inches provides consistent bearing surface

Compatibility

Designed as an OEM-style replacement or new-installation flat washer for use with 3/8-inch screws and bolts in structural, mechanical, and general-purpose assemblies conforming to SAE and ASTM F436 specifications.

Installation Notes

Install using standard hand or power tools appropriate for the fastener type. Always power down or de-energize equipment before servicing bolted connections on electrical or mechanical assemblies. Follow applicable code requirements, including IPC, IFGC, or NEC as relevant to the system being serviced. Do not substitute this washer in applications requiring specific material grades or finishes other than those listed.