The nickel plated brass M22 spiral connector is a conventional pipe connection method in the field of cleaning machinery. It is screwed together with internal and external threads. At the same time, the pin in the internal thread connector is inserted into the hole in the external thread connector, and it is sealed with an O-ring. It is convenient and practical, with a stable and firm connection and can withstand high pressure; it is fast to connect and easy to disconnect, just unscrew the threads; the connector body is made of brass, which has strong corrosion resistance and can be used for a long time in acid and salty media; there is a plastic sleeve outside the nut, which feels good and smooth to turn the nut, and can also prevent scalding, making it suitable for use in hot water media; in addition, the surface of the connector is nickel-plated, which can better prevent corrosion and will not turn copper green after long-term use