ITEM NAME:Nice 4PCS M5 Male - 4mm Straight Push in Fitting Pneumatic Push to ConnectB M&O Features: Type: Straight Male Connector NPT Dimension: Tube: 4mm Thread: M5 Material: Brass Pressure Range: 0-150 PSI/ 0-9.9 kgf/cm2 (0-990kPa) Ambient/Fluid Temperature: 32-140 ° F/0-60 ° C Image is for model identification purpose only. Depending on the size actual item might look differently Designed for Polyurethane or Nylon tubing Quick and Reliable connections Reusable: Multiple connections/disconnections Convenient elliptical sleeve configuration Metallic body made of non-corrosive, non-contaminant Nickel-plated Brass Outside (and Inside where applicable) hexagonal wrench tightening Package include: 4pc x Straight Male Connector.Thread: M5. Type: Straight Male Connector NPT. Image is for model identification purpose only. Depending on the size actual item might look differently. Reusable: Multiple connections/disconnections.