Prime-Line 9086143 Fender Washers, 1/2 In. X 2 In. OD, Black Neoprene (10 Pack) Product Description Fender washers have a larger outside diameter than standard washers allowing the load to be spread over a larger area. This allows it to be used on softer metals. They are most often used in the automotive and other sheet metal industries. Size: 1/2 inch X 2 inch Outer Diameter Features larger surface area compared to standard washers Spreads the load over a larger bearing surface Used for sheet metal work and auto body repair Because of the larger outside diameter, can be used to cover damage or if hole is slightly too large