The JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6h - M20 x 0.5 is a precision inspection tool designed to verify external threads on fasteners, fittings, and machined components. It’s ideal for engineering shops, quality control labs, and maintenance teams that need a reliable quick-check to confirm parts meet the M20 x 0.5 fine thread specification. The NoGo designation helps you quickly identify parts that do not conform, reducing guesswork and rework in your QC processes.

• NoGo limit verification: Quickly determines if an external thread exceeds the maximum allowable diameter, enabling fast pass/fail decisions and reducing inspection time.
• Metric Fine M20 x 0.5, 6h right-hand thread: Precisely matched to the M20 x 0.5 fine pitch with 6h tolerance, ensuring consistent measurements and reliable compliance with standard specifications.
• Durable hardened steel construction: Built to withstand daily use in demanding environments, offering wear resistance, long service life, and minimal maintenance while preserving calibration.

This gauge supports streamlined quality control by delivering consistent, repeatable results across production runs. Its rugged build and precise sizing help you maintain traceable inspection records, reduce downtime from misfits, and ensure threaded components meet required standards for reliable performance in assemblies and fittings.