The JBO Thread Ring Gauge (NoGo) is a precision inspection tool designed to verify external UNC threads on right-hand fasteners. Sized No. 5 x 40 and built to the 3A class, it’s crafted for use in manufacturing, automotive, and aerospace environments where accurate thread measurement matters. This gauge helps quality teams quickly confirm that threads meet Unified thread standards and specifications.

• NoGo design for fast conformance checks: Quickly flag out-of-tolerance threads during inspection, reducing downtime and preventing misfits from advancing to assembly.
• UNC, Right Hand, 3A, No. 5 x 40 accuracy: Precisely matched to common Unified Thread Standards and the specified size, delivering reliable measurements and consistent results in daily use.
• Durable hardened steel construction: Built to withstand frequent handling and repeated insertions while maintaining long-term measurement integrity.

Designed to streamline quality control, the JBO Thread Ring Gauge (NoGo) supports faster, more confident inspections. By clearly indicating non-conforming threads, it helps protect fit and function across assemblies, improves workflow efficiency, and enhances overall reliability in demanding production environments.