Male Thread Size: M5 " , 1/8", 1/4", 3/8", 1/2"BSPTFit For Tube Outer Diameter: 4mm 6mm 8mm 10mm 12mmTips:01=1/8" Threaded≈9.7mm02=1/4" Threaded≈12.7mm03=3/8" Threaded≈16mm04=1/2" Threaded≈20mmFluid Type:Air / VacuumOperating Pressure:0~10.2kgf/cm2 (0~1.0Mpa)Negative Pressure:-750mmhg (10 Torr)Operating Temperature Range:PU / Nylon ,PolyurethaneQuick Fitting Material:Brass/Plastic