The JBO Thread Ring Gauge (NoGo) is a precision measurement tool used to verify external thread diameters on fasteners, fittings, and machined parts. Sized for right-hand threads in the Pg 7 x 20 specification, it’s ideal for quality control teams, machinists, and inspectors who need quick, reliable checks against standard thread dimensions.

With the NoGo design, you can instantly identify non-conforming threads, reducing guesswork, rework, and downtime while ensuring proper fit and reliable performance in automotive, aerospace, and general manufacturing environments.

• Go/No-Go design for fast conformity checks: Instantly confirms whether the external thread diameter is within tolerance, speeding up inspections and reducing guesswork on the shop floor.
• Durable hardened steel construction: Built to withstand daily use in busy shops while preserving measurement accuracy and long service life.
• Right-hand Pg 7 x 20 and unified-thread compatibility: Precisely sized for this specification and aligned with standard thread forms to ensure reliable cross-part checks and consistent results.

Using the JBO Thread Ring Gauge (NoGo) helps streamline quality workflows by delivering quick, reliable thread verification. It reduces rework and non-conformance risk, supports confident decisions during assembly, and helps maintain consistent results across batches. The rugged hardened steel construction and precise Pg 7 x 20 right-hand sizing enable steady, repeatable measurements in busy production environments, boosting overall throughput and product quality.