The JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external UNF threads. Designed for manufacturing, automotive, and aerospace environments, it is ideal for engineers, inspectors, machinists, and quality teams. It checks right-hand UNF threads at size No. 1 x 72 and class 2A, with a No-Go segment that clearly flags non-conforming threads for fast, decisive quality control.

Crafted from hardened steel, this gauge is built for daily use, delivering stable, repeatable measurements and long service life. It integrates smoothly into standard inspection workflows, helping ensure every threaded component meets Unified threading standards before assembly or shipment.

• NoGo quick verification: Quickly confirm external UNF thread size against the 2A class with a simple pass/fail check, reducing inspection time and rework.
• UNF Right-Hand, 2A class specification: Precisely designed to match Unified external thread standards for right-hand threads, ensuring consistent measurements and reliable fit with compatible parts.
• Hardened steel construction: Built to endure daily use in busy shop environments, delivering long-lasting accuracy and wear resistance that keeps readings stable over time.

Using the JBO Thread Ring Gauge (NoGo) helps streamline quality control, improve measurement consistency, and reduce downtime caused by threaded-part misfits. Its robust construction and standard-compliant design provide a dependable reference for fast, accurate inspections, empowering teams to ship components with confidence.