Item Specifications UPC 842176178165 Package Quantity 25 Inch / Metric Inch Thread Size 5/16" Inside Dia. 0.347" Outside Dia. 1.25" Thickness Min. 0.048" Thickness Max. 0.06" Material Stainless Steel 18-8 Finish Plain Item Type Washers Washer Type Fender Washer Product Code 5150-7015 SKU 3SWFD905-104