Metric thread gauges — detail
Gauge family 01 / 11

Metric thread plug & ring gauges, manufactured in Pune.

DIN ISO 1502Metric 60° · DIN ISO 1502 / ANSI ASME B1.16M

Metric thread plug and ring gauges manufactured to DIN ISO 1502. GO and NOT-GO members verify pitch diameter and functional fit across the full metric range.

Thread plugs
1 – 480 mm
Thread rings
1 – 500 mm
Representative sizes & classes
DiameterPitchPlug classRing class
M10.25 mm5H6h
M20.40 mm6H6g
M30.50 mm6H6g
M40.70 mm6H6g

GO gauge

Enters and passes the complete length of the thread, screwed by hand without excessive force.

NOT-GO gauge

May not enter more than two turns from either end, screwed by hand without excessive force.

Ground on our Matrix thread grinders and verified on TRIMOS H4 before every certificate is issued.

Common questions

Questions about Metric thread gauges

What is a metric thread gauges?

Thread plug and ring gauges for metric 60° threads, GO / NOT-GO, to DIN ISO 1502.

Which standard does it follow?

Manufactured to DIN ISO 1502.

What range is available?

Available ranges: Thread plugs 1 – 480 mm; Thread rings 1 – 500 mm.

How does GO / NOT-GO acceptance work?

The GO member must enter and pass the complete length of the thread by hand, without excessive force. The NOT-GO member may not enter more than two turns from either end.

How do I request a quote?

Share the thread size and standard on our quote page and we will confirm class, availability and pricing within one business day.

Need metric thread gauges?

Share your thread, standard or drawing and get the right acceptance class, certified. We supply across India and take enquiries from outside India too, see where we supply.