Trapezoidal gauges — detail
Gauge family 07 / 11

Trapezoidal thread gauges, manufactured in Pune.

DIN 103-9Trapezoidal 30° · DIN 103-9

Trapezoidal thread gauges manufactured to DIN 103-9. Tolerance 7H/7e is recommended for medium quality and 8H/8c for coarse quality.

Medium tolerance
7H / 7e
Coarse tolerance
8H / 8c
Representative sizes & classes
QualityNutBolt
Medium7H7e
Coarse8H8c

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 Trapezoidal gauges

What is a trapezoidal gauges?

Trapezoidal (Tr) thread gauges to DIN 103-9, medium and coarse tolerance.

Which standard does it follow?

Manufactured to DIN 103-9.

What range is available?

Available ranges: Medium tolerance 7H / 7e; Coarse tolerance 8H / 8c.

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.

Related

Other gauge families

ACME & Stub ACMEValve thread gaugesMetric thread gauges
Gauge manufacturer in IndiaGeneral engineering

Need trapezoidal 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.