BA Thread Caliper Gauges BSF Screw Plug Thread Gauges BSF Screw Ring Thread Gauges BSF Thread Caliper Gauges BSP Screw Plug Thread Gauges BSP Screw Ring Thread Gauges BSP Thread Caliper Gauges BSPT Screw Plug Thread Gauges BSPT Screw Ring Thread Gauges BSW Whitworth Screw Plug Thread Gauges BSW Whitworth Screw Ring Thread Gauges BSW Whitworth Thread Caliper Gauges METRIC LEFT HAND Thread Gauges METRIC RIGHT HAND ISO Screw Plug Thread Gauges METRIC RIGHT HAND ISO Screw Ring Thread Gauges Metric Thread Caliper Gauges MJ Thread Gauges NPT / NPTF Screw Plug Thread Gauges NPT / NPTF Screw Ring Thread Gauges P.G Screw Plug Thread Gauges P.G Screw Ring Thread Gauges RP Thread Plug Gauges Special Order Thread Gauges UNC Screw Plug Thread Gauges UNC Screw Ring Thread Gauges UNC Thread Caliper Thread Gauges UNEF Screw Plug Thread Gauges UNEF Screw Ring Thread Gauges UNEF Thread Caliper Gauges UNF Screw Plug Thread Gauges UNF Screw Ring Thread Gauges UNF Thread Caliper Gauges UNS Screw Plug Thread Gauges UNS Screw Ring Thread Gauges