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Metric Thread and Gauge Profile

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

Max Truncation

Min Truncation

Tolerance zoneTolerance zone
for Major Dia.for Picth Dia.
of externalof external
threadthread

Min Minor Dia

Max Minor Dia

Only pitch diameter is described.

Gauge for Major Dia. of Extenal Thread Gauge for Pitch Dia. of Extenal Thread