Item Specifications UPC 842176162942 Package Quantity 50 Inch / Metric Inch Thread Size 3/8" Inside Dia. 0.406" Outside Dia. 0.875" Thickness Min. 0.043" Thickness Max. 0.057" Material Brass Finish Plain Item Type Washers Washer Type Flat Washer Product Code 5150-6810 SKU 3RWFS906