The JBO Thread Ring Gauge (NoGo) UNS - Right Hand - 2A - 1/4 x 36 is a precision tool engineered to verify external thread diameters and ensure components conform to Unified thread standards. It’s designed for engineers, quality teams, machinists, and shop floor operators who need fast, dependable checks without guesswork.

Built for reliability in manufacturing, automotive, and aerospace environments, this No-Go gauge speeds inspections and helps prevent misfits by clearly signaling out-of-tolerance threads. Crafted from hardened steel, it stands up to daily use while delivering consistent, repeatable measurements you can trust.

• No-Go design for rapid go/no-go checks: Quickly identify non-conforming threads, reducing inspection time and minimizing rework by providing a clear pass/fail signal for external threads.
• UNS-standard, Right Hand, 2A, 1/4 x 36 sizing: Calibrated to the UNS thread form with the Right Hand orientation and 1/4 x 36 pitch, ensuring accurate verification of external threads used in a wide range of applications from precision machined parts to fasteners in automotive and aerospace.
• Hardened steel construction for durability: Built to withstand daily use in busy shops, delivering long tool life and consistent measurements that you can rely on day after day.

Using this gauge helps streamline quality checks, reduce downtime, and deliver confident, repeatable results across manufacturing and maintenance workflows. It supports faster decision-making on fit and function, ensuring components meet exact specifications and perform reliably in their intended applications.