Item Specifications UPC 842176162959 Package Quantity 25 Inch / Metric Inch Thread Size 1/2" Inside Dia. 0.531" Outside Dia. 1.125" Thickness Min. 0.055" Thickness Max. 0.069" Material Brass Finish Plain Item Type Washers Washer Type Flat Washer Product Code 5150-6815 SKU 3RWFS908