1/2" x 2" Stainless Fender Washer, (100 Pack), 18-8 (304) Stainless Steel Flat Washer, 0.562" ID x 2" OD x 0.062" Thick, Plain Finish Metal Washer by Bolt Dropper: Amazon.com: Industrial & Scientific
Everbilt 1/4 in. x 1 in. Metallic Stainless Steel Fender Washer (3 per Pack) 800511 - The Home Depot
Everbilt 3/16 in. x 1-1/4 in. Zinc-Plated Fender Washer (100-Piece per Box) 804780 - The Home Depot