ITEM NAME:150 Pcs Copper Sealing Flat Washer Set Seal Kit Automotive Repairing Description: - Made of copper, high conductivity & corrosion resistant - It contains 150pcs/15 Sizes of the most commonly used copper washers which are sturdy, durable and easy to install - Used to support and spread the load across the baring area of the bolt and nut to prevent pull through - Great for sump plugs, water, fuel and hydraulic fittings - Perfect for electrical connections on household and commercial appliances, automotive and marine uses in which the power source has a threaded/bolt-type connection Specification: - Each size of flat washers are packed of 10. "M5" is referring to 5mm. - 150 washers, 15 sizes are included in all. - Detailed size: - M5 x 9 x 1mm - M6 x 10 x 1mm - M6 x 12 x 1mm - M8 x 12 x 1mm - M10 x 14 x 1mm - M10 x 16 x 1mm - M10 x 18 x 1mm - M12 x 16 x 1mm - M12 x 18 x 1.5mm - M14 x 18 x 1mm - M14 x 20 x 1.5mm - M16 x 22 x 1.5mm - M18 x 24 x 1.5mm - M20 x 26 x 1.5mm - M22 x 28 x 1.5mm - Box Size: 130 x 68 x 22mm / 5.12 x 2.67 x 0.86" Package Included: 150 pcs copper washers packed in box.Used to support and spread the load across the baring area of the bolt and nut to prevent pull through. - It contains 150pcs/15 Sizes of the most commonly used copper washers which are sturdy, durable and easy to install.