Feature
ISO metric screw threads are the most commonly used general purpose screw threads in the world.

A wide selection of GO and NO-GO fixed gauges are available for checking internal and external thread diameters. to ensure accuracy This ensures a good fit between threaded components. This will help loosen the screw joints in your final piece.

Standard durability
• Ring 6G

Tolerance
• class: 4、5、6、7、8.
• External thread g、h

How to check threaded ring?
• Thread ring GO gage check maximum secondary diameter and maximum pitch diameter in any section
• NO-GO gage thread ring Verify that the hole does not exceed the minimum pitch diameter of the part.

Distribute
• GO / NO-GO Ring.