3/8" X 2" O.D. Zinc Plated Fender Washers (Pack of 12): Flat Washers: Amazon.com: Industrial & Scientific
Amazon.com: 3/8 ID x 2 OD Stainless Steel Fender Washer Large OD Flat Washers Extra Thick (1/8" Thick) (5 Pieces) : Industrial & Scientific
3/8 x 1 1/2 Fender Washer Plain – FMW Fasteners
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