Metric Thread and Gauge Profile Description of products elation of tolerance osition bet een scre thread classes and thread au e classes in standard ■External threads and Limit gauges for external threads Example : ISO M10×1.5/6g Basic Major Dia. of external thread 10mm *Relation between tolerance zone of external thread and that of limit gauges for external thread is shown. *Pitch Dia. of external thread is virtual pitch Dia. *Pitch Dia of screw ring gauge is simple pitch Dia. Pitch diameter tolerance and Major diameter tolerance of external thread Tolerance of screw ring gauge and caliper gauge Minimum wear Basic Pitch Dia. of external thread 9.026mm Basic Profile 6g 6g Max Truncation Min Truncation Min Minor Dia Max Minor Dia Only pitch diameter is described. Plain NOT GO caliper gauge Plain GO caliper gauge Tolerance zone Solid NOT GO screw ring gauge Solid GO screw ring gauge Tolerance zone for Major Dia. for Picth Dia. of external of external thread thread Gauge for Major Dia. of Extenal Thread Gauge for Pitch Dia. of Extenal Thread Technical Information Technical-9 780