【easy connection and disconnection】 Pneumatic connector, easy and quick to install, no tools needed. 【M5 male threads】 Conectors adopted M5 threads, fit for many places. 【wide application】Widely applied to pneumatic tool, auto industry, air compressor, mechanical engineering, etc. 【high compressive strength】High compressive strength, good performance and high reliability. 【high quality copper】Die casting connectors are made of high quality copper materials, strong and