The JBO Thread Plug Gauge (GO) is a precision inspection tool designed to quickly verify threaded holes conform to Unified thread standards. Sized for UNS right-hand threads at 1 5/8 x 8 with a 2B tolerance, this go gauge helps machinists, quality control inspectors, and shop teams confirm proper thread form during assembly and refurbishment.

Used in manufacturing, automotive, and aerospace contexts, this go gauge provides an instant go/no-go check: if the gauge slides through smoothly, threads are within spec; if it binds, the thread is out of tolerance. The result is faster inspections, less trial assembly, and consistent part mating across batches.

• Go-Design for Quick Pass/Fail Checks: The GO end is used to confirm that threads are properly formed and depth is within tolerance, delivering fast, clear indications on the shop floor. This keeps production moving and reduces guesswork during assembly.
• Precise UNS Right-Hand Dimensions: Engineered to the UNS standard for right-hand threads at 1 5/8 x 8 with 2B tolerance, ensuring reliable, repeatable checks for every hole and every batch.
• Durable, Easy-to-Use Construction: Features a knurled, robust metal body for secure handling in oily or dusty environments, designed to withstand daily use and provide long-lasting accuracy.

The JBO GO thread plug gauge helps you streamline quality checks, shorten setup times, and improve consistency across parts and assemblies. By delivering quick, objective pass/fail results, it reduces rework, safeguards fit and function, and supports reliable performance in critical applications from shop floors to precision assemblies.