As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.

316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.

18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.

Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.

Aluminum washers are lightweight and corrosion resistant in wet environments.

Bronze washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.

Washers that meet ASME B18.21.1 adhere to strict dimensional standards. Steel washers also meet standards for material properties.

For technical drawings and 3-D models, click on a part number.

Choose these washers for their adherence to strict military standards for material and construction. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.

18-8 stainless steel washers have excellent corrosion resistance in most environments. They may be mildly magnetic.

Passivated stainless steel washers have added protection against oxidation and corrosion. Black-oxide stainless steel washers have a matte-black finish.

Cadmium- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.

For technical drawings and 3-D models, click on a part number.