The JBO Thread Ring Gauge (NoGo) is a precision tool for checking external threads to Unified standards. Designed for manufacturers, automotive workshops, aerospace facilities, and maintenance teams, it helps you quickly confirm that threaded parts will fit properly and perform as intended.

This gauge is a Right Hand, UNEF 2A size with a 1 1/4 x 18 thread, built for reliable NoGo testing. It uses hardened steel construction to withstand daily use in busy environments, providing accurate, repeatable checks that help prevent misfits and costly rework.

• NoGo design for fast conformance checks: Quickly identify non-conforming threads during inspection, reducing inspection time and helping prevent incorrect assemblies.
• UNEF 2A right-hand, 1 1/4 x 18 sizing: Precise alignment with common Unified thread standards ensures reliable sizing checks and compatibility with typical components.
• Hardened steel construction: Built for durability and long service life in demanding shop conditions, maintaining accuracy even after frequent use.

Using the JBO Thread Ring Gauge (NoGo) streamlines quality control by providing clear, reliable feedback on thread engagement. It supports faster throughput in production and maintenance cycles, helps ensure proper fit and performance of threaded parts, and gives buyers and inspectors confidence in consistent, repeatable results across assemblies.