The JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external thread diameters to Unified thread standards. This gauge is specified for UNS, Right Hand, 2A class, in size 1 5/8 x 12, making it essential for quality control in manufacturing, automotive, and aerospace environments. It helps inspectors and technicians quickly determine if a threaded component will assemble correctly with its mating part.

Crafted from hardened steel, this gauge is built to withstand daily use in busy shops while maintaining accurate, repeatable measurements. The NoGo design provides a clear pass/fail indication, enabling rapid identification of non-conforming threads and reducing guesswork during inspections.

• NoGo design for fast conformity checks: Quickly determine if a thread is within tolerance; if the gauge does not pass, you’ve identified a non-conforming part, saving time and preventing misfits in assemblies.
• Hardened steel construction for durability and accuracy: Delivers long service life in demanding workshop environments while preserving measurement stability across many cycles.
• UNS Right Hand 2A, 1 5/8 x 12 sizing for reliable compatibility: Precisely matched to common UNS external threads, ensuring accurate inspections for components and fixtures that rely on this standard.

This gauge helps you streamline inspection workflows, improve first-pass acceptance rates, and standardize checks across shifts. With its durable build and precise sizing, you can trust your thread measurements to be consistent, reducing downtime and supporting reliable, repeatable results in your manufacturing or engineering processes.