The JBO Thread Plug Gauge is a precision inspection tool designed to verify trapezoidal threaded holes quickly and reliably. Built for manufacturers, automotive shops, and aerospace suppliers, it provides a clear go/no-go verdict on whether threads meet the required standard and size. With its right-hand orientation and 7H tolerance (Tr. 12 x 3), this gauge supports accurate, repeatable measurements in demanding environments.

Designed with meticulous dimensions and a focus on practical use, the gauge makes threaded-hole inspection straightforward. The go/no-go capability lets inspectors identify conforming and non-conforming threads at a glance, helping maintain quality while reducing rework and guesswork across production lines.

• Go/No-Go quick checks: Instantly determine if trapezoidal threads pass or fail, speeding inspections and reducing guesswork.
• 7H trapezoidal, right-hand threading (Tr. 12 x 3): Precisely matches standard trapezoidal threads for reliable hole verification in critical assemblies.
• Meticulous construction for repeatable results: Precise dimensions and a robust design deliver consistent measurements across multiple uses and setups.

This gauge helps you perform faster, more confident inspections, reducing the risk of mismatched threads and supporting rigorous quality control across production lines. Its go/no-go capability simplifies training and standardizes checks for threaded components, helping your team achieve reliable assembly and consistent performance in demanding applications.