<p>Feature: 1Made of high-quality copper, sealing washer's melting point is up to 1083 , which is durable. 2With good electrical and thermal conductivity, copper gasket's quality is guaranteed, you can use it with confidence. 3And such gasket is suitable for oil pan plug, water, fuel and liquid pressure connector, easy to use. 4Built to strict quality control standards, copper washer design is improved for more practical adoptability. 5No extral step is required when you use such fastener and the operation is simple. Item Type: Copper gasket Material: Copper Quantity: 200PCs / 280PCs (optional) Product Number: 200PCs Size: (Inner Diameter x Outer Diameter x Thickness) M5 x 9 x 1mm 30pcs M6 x 10 x 1 mm 30pcs M6 x 12 x 1 mm 20pcs M8 x 12 x 1 mm 20pcs M8 x 14 x 1 mm 20pcs M10 x 14 x 1 mm 20pcs M12 x 16 x 1 mm 20pcs M12 x 18 x 1.5 mm 20pcs For M14 x 18 x 1 mm 20pcs 280PCs Size: (Inner Diameter x Outer Diameter x Thickness) M5 x 9 x 1 mm 30pcs M6 x 10 x 1 mm 30pcs M6 x 12 x 1 mm 20pcs M8 x 12 x 1 mm 30pcs M10 x 14 x 1 mm 30pcs M8 x 14 x 1 mm 20pcs M12 x 16 x 1 mm 25pcs For M14 x 18 x 1 mm 25pcs M12 x 18 x 1.5 mm 20pcs For M16 x 20 x 1.5 mm 20pcs For M16 x 22 x ??1.5 mm 15pcs M20 x 26 x 1.5 mm 15pcs Package Included: Size: (Inner Diameter x Outer Diameter x Thickness)30 x (M5 x 9 x 1mm) Copper Gasket30 x (M6 x 10 x 1 mm) Copper Gasket20 x (M6 x 12 x 1 mm) Copper Gasket20 x (M8 x 12 x 1 mm) Copper Gasket20 x (M8 x 14 x 1 mm) Copper Gasket20 x (M10 x 14 x 1 mm) Copper Gasket20 x (M12 x 16 x 1 mm) Copper Gasket20 x (M12 x 18 x 1.5 mm) Copper Gasket20 x (For&nbspM14 x 18 x 1 mm) Copper Gasket</p>