Item Specifications UPC 842176162874 Package Quantity 100 Inch / Metric Inch Thread Size #4 Inside Dia. 0.133" Outside Dia. 0.250" Thickness Min. 0.025" Thickness Max. 0.040" Material Brass Finish Plain Item Type Washers Washer Type Flat Washer Product Code 5150-6770 SKU 3RWFS004