20) Plain Steel 1/2 x 3 Heavy Dock Washer 1/4" Thick - 3" Diameter - Lexar Industrial
3-1/2" Aluminum Washer with 3/8" Hole – Modern Studio Equipment.
EXTSW 1/2" ID x 1" OD x 1/4" Thick 304 Stainless Washer
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Extra thick Washer for 1/2" 12mm Bolt 3/16" thick 9/16x1-5/8 wide .56x1.62x.187 | eBay
Flat Washers 304 Stainless Steel - 1/2" (.531 ID x 1-1/4 OD x .062 Thick) Qty-100: Amazon.com: Industrial & Scientific
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
EXTSW 3/8" ID x 1" OD x 1/4" Thick 304 Stainless Washer