G 3/8x19 BSP Thread Ring Gauge No-Go Class "B" Free Fit
Specification G3/8 BSP Go or NoGo screw ring thread gauge 3/8.19 tpi BSP Conforms to BS2779, BS 919 Part 2 3/8" Calibration certificate see "calibration screw thread gauges" Part Number ES-7373Visit the JLS Supplies Ltd website for more information on G 3/8x19 BSP Thread Ring Gauge No-Go Class "B" Free Fit