quick view Add to Cart ARP Fasteners ARP Special Purpose Flat Washer 9/16 ID 1.00 OD black washers, Set of 10 MSRP: $12.99 Washers, Chromoly, Black Oxide, .563 in. I.D., 1 in. O.D., .120 in. Thick, Set of 10 Washer Outside Diameter (in.): 1.00 in. Washer Outside Diameter (mm): 25.400 mm Washer Inside Diameter (in.): 0.56... Add to Cart Add to Wish List Add to My Wish List Create New Wish List