The JBO Thread Ring Gauge (NoGo) is a precision tool for checking external UNEF right-hand threads, specifically size 1 5/16 x 18 in class 2A. Designed for manufacturing, automotive, and aerospace environments, it helps verify that threaded components meet exact standards and will assemble reliably.

With its NoGo design, it provides fast, unambiguous go/no-go verification of thread conformity, helping to identify non-conforming parts early and avoid misfits. Constructed from hardened steel, the gauge offers durability and stable measurements through heavy use on the shop floor.

• Precise UNEF 2A sizing (1 5/16 x 18, Right Hand): Delivers accurate external thread diameter verification to ensure parts fit correctly and pass inspection.
• NoGo conformance verification: Enables quick pass/fail checks, reducing inspection time and preventing non-conforming threads from advancing.
• Hardened steel construction: Built for longevity, resisting wear and maintaining accuracy over many cycles of use.

Using this gauge streamlines quality control, speeds up assembly readiness, and supports consistent results across production runs. Its durable build and precise sizing help you meet Unified thread standards with confidence, minimize rework, and improve the overall reliability of threaded connections.