Copper Washers Assortment Kit Flat Sealing Crush Washers M5 M20 Plumbing 330 Pcs
Thread Size M5, M6, M8, M10, M12, M14, M16, M20. Fastener Size M5, M6, M8, M10, M12, M14, M16, M20. Comprehensive Set: This kit includes 330 premium copper washers in 12 sizes (M5, M6, M8, M10, M12, M14,, M20).