The JBO Thread Ring Gauge (NoGo) – Metric Coarse, Left Hand, 6g, M16 x 2 is a precision inspection tool designed to verify external thread diameters and pitch on metric coarse fasteners. It’s ideal for quality control teams, machine shops, and assembly lines that require consistent, reliable pass/fail checks.

Crafted from hardened steel, this NoGo gauge delivers durable, long-lasting performance in demanding environments, maintaining tight tolerances through repeated use and resisting wear that could affect accuracy.

• Left-Hand, Metric Coarse Thread Compatibility: Specifically designed for left-hand M16 x 2 coarse threads, enabling accurate engagement and reliable Go/No-Go checks for non-standard fasteners.
• Hardened Steel Construction: Built to withstand daily workshop use, resist wear, and preserve precise thread dimensions over time, reducing calibration drift.
• Fast, Clear Go/No-Go Verification: Simple, repeatable checks that quickly confirm whether a part passes the required tolerance, speeding up QC and minimizing guesswork.

Using the JBO NoGo gauge helps you streamline quality control, catching non-conforming components early before assembly or installation. It supports consistent, repeatable inspections, reduces downtime from misfits, and gives your team a dependable tool that delivers confidence in every measurement—so every M16 x 2 left-hand connection performs as designed.