The JBO Thread Plug Gauge is a precision inspection tool designed to verify trapezoidal threaded holes meet exact standards. With a built-in Go/No-Go design, it provides quick, authoritative pass/fail checks that help ensure proper fitment and reliable performance in manufacturing, automotive, and aerospace environments.

Designed for professionals who specify trapezoidal thread sizes, this right-hand gauge is tuned to 7H tolerance, delivering consistent measurements across parts and batches. Its compact, durable construction makes it suitable for busy workshops and QA labs.

• Go/No-Go Quick Check: Instantly determine if a thread hole passes or fails spec, speeding inspections and reducing rework.
• Trapezoidal Thread Size (Tr. 18 x 4): Specifically matched to trapezoidal holes, ensuring accurate gauging for this profile.
• Durable, Knurled Construction with 7H Tolerance: Robust, easy-to-hold gauge that delivers repeatable measurements in busy shop environments.

Using this gauge in your QC workflow helps you inspect confidently, speed up assembly and verification, and ensure trapezoidal-threaded components fit correctly the first time. With its Go/No-Go design, right-hand orientation, and tight 7H tolerance, you can rely on consistent results across parts and batches, improving overall quality and throughput.