Prime-Line 9080139 Flat Washers, USS, 1/2 in. X 1-3/8 in. OD, Zinc Plated Steel (50 Pack)

Size: 1/2 inch X 1-3/8 inch OD | Most commonly used and versatile washer | Increases bearing surface and distributes load over a larger area | Can be used to prevent a screw or bolt from going into a hole too far | Can also be used as spacers by stacking more than one