1/2 USS Thick Flat Washer (100 Pack) 1/2" x 1-3/8" Zinc Plated Steel, Meets ASME B18.21.1 Industrial/Commercial Grade by Makers Bolt

Size: 1/2" | Outside Diameter: 1-3/8" | Inside Diameter: 9/16" | Thickness: 0.086"-0.132" | Quantity: 100 washers per package | Type: USS flat washer - USS is the most common standard for flat washers | Thicker than SAE | Plating: zinc plated for moderate corrosion resistance | Material: low carbon steel for general use | Meets ASME B18.21.1 standard