Skip to content

M Ring Thread Gauge GO / NOGO 6g (M1x0.25 GO - M30x3.5 NOGO)

The Metric Ring Thread Gauge GO / NO-GO is designed for fast and reliable inspection of external ISO metric threads. The gauge provides a simple and accurate method for verifying that manufactured external threads meet the required dimensional limits and 6g tolerance class.

Each gauge features separate GO and NO-GO checking rings, allowing efficient inspection of threaded components in production, machining, and quality control environments.

Key Features

  • Complete GO / NO-GO thread ring gauge set

  • Includes 1× GO ring + 1× NO-GO ring

  • For checking external metric threads

  • ISO Metric thread profile

  • 6g tolerance class

  • Right-hand thread

  • Size range: M1×0.25 to M30×3.5

  • Quick and reliable thread inspection

  • Suitable for production and quality control applications

Certification

Most gauges are supplied with a manufacturer’s inspection certificate. An accredited laboratory calibration certificate is available upon request at an additional cost.

Applications

  • Inspection of external threaded components

  • CNC machining quality control

  • Production line inspection

  • Incoming and final inspection

  • Verification of metric external threads