Description: Copper washers are good quality, durable and durable, high voltage resistance. Applicable Scope: Automotive, Boat, Appliance, etc. These copper rings are very convenient to secure and seal mechanical parts. This assortment of automotive essential washers is ideal for sampling plugs, water, fuel and hydraulic fittings. Note: 0.3? Please allow 0.5mm error Package: 20 x Copper Washers