The JBO Thread Plug Gauge is a precision go/no-go tool designed to verify trapezoidal threaded holes and components. Sized for Tr. 20 x 4 right-hand threads with a 7H tolerance, it helps ensure parts meet standard thread specifications across manufacturing, automotive, and aerospace applications. Its straightforward go/no-go design lets inspectors quickly determine whether threads are within tolerance, reducing guesswork and rework.

Built for reliability in busy production environments, this gauge supports fast, repeatable inspections and confident decisions on part acceptance. Its study construction and clear delineation between go and no-go limits help maintain consistency with Unified thread standards, improving overall quality control and traceability.

• Go/No-Go Quick Verification: Instantly confirms thread conformity, speeding inspections and minimizing downtime by clearly signaling passing or failing threads.
• Precisely Sized for Tr. 20 x 4, 7H Tolerance: Calibrated to standard trapezoidal thread dimensions and tolerance, delivering reliable, repeatable test results for critical components.
• Right-Hand Orientation with Durable, Ergonomic Body: Designed for comfortable handling and accurate orientation on the shop floor, with a robust build that withstands demanding environments.

Incorporating the JBO Thread Plug Gauge into your workflow saves time, reduces misfits, and supports consistent assembly and performance across parts that use trapezoidal threads. It provides clear, dependable testing results that you can trust for daily quality checks and long-term production reliability.