The Asimeto Ring Thread Gauge (NoGo) is a precision metric gauge designed for inspectors, machinists, and quality teams who need reliable, on-the-spot checks of external threads. It tests M20 x 1.5 right-hand threads at the 6g tolerance class to help ensure only properly sized fasteners are used.

• Gauge Type: NoGo ring gauge for external threads, configured to verify the maximum pitch diameter within the 6g class.
• Thread Size: Metric M20 x 1.5, right-hand threads, suited for common fasteners in precision assemblies.
• Pass/Fail Designation: NoGo designation indicates if a fastener’s pitch diameter is too large—if it won’t pass through, it exceeds the allowable limit.
• Series: 686 Series, crafted for precise, repeatable measurements in busy shop environments.
• Material & Durability: Constructed with high-quality materials to withstand regular use and maintain accuracy over time.

Using this NoGo gauge during inspection helps prevent mismatched threads from entering assemblies, reducing misfit risks, component wear, and rework. It’s ideal for quality control during production runs, maintenance checks, and finish-owned projects where consistent thread diameter verification matters. The 686 Series gauge provides a dependable, repeatable reference for confirming that external threads stay within specified limits, supporting safer, more reliable connections across mechanical applications.