1/2" x 2" x 3/16" Square Plate Washer 316 Stainless Steel
Washers : 3" x 3" Square Washer W/ 1-1/16" Hole
B-Line B201ZN 3/8" Square Strut Washer, Electro-Plated Zinc | Cooper Electric
5/8 x 2 x 2 Galvanized Square Washer (1/8 Thick) | The Nutty Company,
FP100 Square Washer | Taylor Walraven
Superstrut 3/8 in. Square Strut Washer Silver Galvanized (5-Pack) ZAB2413/8EG-10 - The Home Depot
5/8 Square Washer 0.688 ID 2.000 OD 0.170-0.200 Thk Steel USA - AMPG - Shoulder Screws, Shoulder Bolts, Sex Bolts, Flat Washers, Machine Screws and other fasteners