The JBO Thread Ring Gauge (NoGo) is a precision tool for verifying external threads to the Unified Standard. Designed for engineers, machinists, quality inspectors, and shop floor buyers, it checks UNEF threads quickly and reliably, ensuring parts meet the 1/4 x 32 right-hand specification.

With a NoGo design and 2A tolerance class, this gauge makes it easy to spot non-conforming threads at a glance, supporting fast pass/fail decisions in busy production environments. The hardened steel construction ensures durability and dependable accuracy through repeated use.

• NoGo design for quick conformance checks: Enables rapid identification of undersize or out-of-tolerance threads, reducing inspection time and preventing incorrect assemblies.
• UNE F 1/4 x 32 right-hand threading: Precisely machined to the exact UNEF 1/4-32 right-hand specification to ensure accurate diameter verification and consistent results.
• 2A class accuracy and hardened steel construction: Delivers reliable, repeatable measurements with long service life in demanding environments.

In practice, this gauge streamlines quality control by providing clear go/no-go feedback, helping to minimize rework, ensure proper thread engagement, and maintain consistent performance across production runs.