The JBO Thread Ring Gauge (NoGo) is a precision inspection tool for external UNC threads. Used across manufacturing, automotive, and aerospace environments, it helps verify that thread diameters conform to Unified Thread Standards, ensuring proper fit and reliable performance in assemblies.

This NoGo gauge is designed for Right Hand threads, 3A class, No. 12 x 24 size, providing a clear NoGo limit for quick identification of non-conforming threads and helping keep production on track.

• Go/No-Go design for fast conformance checks: The NoGo limit enables a quick pass/fail indication for external threads, helping inspectors and machinists identify non-conforming parts in seconds and reduce rework.
• Hardened steel construction for durability: Built to withstand daily use in demanding shop environments, resisting wear and maintaining accurate measurements over time.
• UNC Right Hand 3A, No. 12 x 24 sizing for standardized compatibility: Precisely matched to common UNC fasteners and components, ensuring reliable measurements and easy cross-reference with other gauges in your quality-control setup.

With the JBO Thread Ring Gauge NoGo, your team gains a reliable, repeatable reference for external thread checks. The rugged construction reduces downtime from worn gauges, while the standardized sizing and NoGo capability streamline acceptance testing, minimize misfits, and improve overall quality control across production lines.