Features 1、Good Sealing Performance: Copper flat washers have good sealing performance, higher heat resistance than steel and rubber washers 2、Resistant To Corrosion: Copper washers are resistant to corrosion in humid environments, have the characteristics of non magnetic, strong electrical conductivity, etc. 3、For Fuel Injector Nozzle: Used for fuel injector nozzle gaskets, application scenarios such as generators, ships, automobiles, machinery and factories, etc. 4、Enough Quantity: There are a total of 50pcs sealing washer in the kit, quantity is enough to meet your using needs 5、Stable Structure: Copper sealing ring come with stable structure, excellent performance and long service life Specification Item Type: Copper Washer Kit Material: Copper Outer Diameter: Approx. 15mm / 0.59in Inner Diameter(spacing between 2 buckles): Approx. 7.3mm / 0.29in Thickness: Approx. 3mm / 0.12in Purpose: Injector nozzle gasket Package List 50 x Copper Washer