HFS R 300Pcs 12 Sizes Copper Metric Sealing Washers Assortment Set

[MATERIAL]: Top quality copper material, melting point up to 1083? [QUANTITY]: 300 pcs/set(12 sizes); See main drawing for dimension details [HIGH PERFORMANCE]: Good electrical conductivity and thermal conductivity, suitable for most occasions [APPLICATION]: Suitable for all types of engines, such as automobiles, ships, generators, machinery and equipment.Ideal for oil pan plug, water, fuel and hydraulic connections. [PACKAGE]: 300pcs solid copper sump plug washer set. All contained in a compact and see through compartmented plastic case