Ersandy - Copper Metal Washers, Gasket Ring Seals, Flat Washers, O-Ring with Box for Sealing - 200pcs/M5 M6 M8 M10 M12 M14

【Exceptional material】 Our metal discs are made of high quality copper, which has good electrical conductivity, thermal conductivity and a melting point of 1083℃ and durable for daily use and can be used repeatedly. 【Easy to use】 O-rings are very easy to install, the surface of the copper washer is smooth, reduces friction between fasteners, prevents leaks, insulates, prevents loosening or pressure leaks. 【Easy to store】 These copper washers are equipped with a storage box, which makes the sealing ring gaskets safer and more convenient to store, easy to carry and maintain good classification. This design will improve work efficiency. 【Wide application】 O-rings are perfect for water, oil drain plugs, fuel and plumbing fittings. Hydraulic seal kit is perfect for electrical connections on household, appliance, automotive and marine equipment. Washers are really cool tools. 【What you will get】The washers include 30pcs M5*9*1, 30pcs M6*10*1, 20pcs M6*12*1, 20pcs M8*12*1, 20pcs M8*14*1,