50/100/120 Pcs Copper Washer Sealing Gasket Flat Ring Seal Assortment Kit M4 M5 M6 M8 M10 M12 M14 For Sump Plugs 50/100 Pcs Copper Washer Sealing Gasket Flat Ring Seal Assortment Kit M4 M5 M6 M8 M10 M12 For Sump Plugs Material: 100% copper, high conductivity, corrosion resistant copper washer assortment, melting point up to 1083 Celsius 7 popular Sizes Sealing Washers Kit, great for sump plugs, water, fuel, and hydraulic fittings. With Storage box,easy take. Widely applied in the flange and the connection of the chemical plant, electricity generating station, nuclear power station, and electronic, digital consumer products, hardware, precision instruments, electrical appliances, bearings, air pumps, water pumps, water valves, air cylinder, sealing the high pressure braking systems.ect. Packing list For 50 pcs M4*8*1 10pcs M5*9*1 10pcs M6*10*1 10pcs M8*12*1 5pcs M10*14*1 5pcs M12*16*1 5pcs M14*18*1 5pc Packing list For 100 pcs M4*8*1 20pcs M5*9*1 20pcs M6*10*1 20pcs M8*12*1 10pcs M10*14*1 10pcs M12*16*1 10pcs M14*18*1 10pc Packing list For 120 pcs M4*8*1 30pcs M5*9*1 30pcs M6*10*1 20pcs M8*12*1 10pcs M10*14*1 10pcs M12*16*1 10pcs M14*18*1 10pc _x000D_