This gauge has 1/8" NPT male threads which come out the back of the gauge. This gauge is a top quality gauge made with a black steel case.<br> <br> Features:<br> 0-60 PSI air pressure gauge with a 1.5" dial plate.<br> This gauge has number markings at 0、 10、 20、 30、 40、 50、 60 psi.<br> Made with a black steel case、 durable for use.<br> 1/8" male npt threads、 which measure about 3/8" outside diameter.<br> <br> Specifications:<br> Material: Steel<br> Pressure Range: 0-60 PSI<br> Threads: 1/8" NPT<br> Dial Plate Diameter: 1.5"<br> Item Weight: 51g / 1.8oz<br> Package Size: 4.5 * 4.5 * 4.2cm/ 1.77 * 1.77 * 1.65in<br> Package Weight: 58g / 2.05oz<br> <br> Package List:<br> 1 * Pressure Gauge<br>  <br>  <br>  <br>  <br>