The JBO Thread Plug Gauge is a precision go/no-go tool designed to verify UNF threads in holes with exact 1/4 x 28 size. Sized for right-hand threads and calibrated to the 2B class, it’s ideal for manufacturing, automotive, and aerospace environments where threaded holes must meet strict standards. The go/no-go design lets inspectors quickly determine if a thread hole is within tolerance, helping prevent misfits and rework while keeping production on schedule.

• Go/No-Go Design for Quick Conformity Check: Instantly distinguish conforming from non-conforming threads, reducing inspection time and eliminating guesswork so parts move through quality checks faster.
• Precise UNF 1/4 x 28 Thread Verification (2B Class): Engineered to exact UNF specifications, this gauge delivers reliable acceptance criteria for standard fasteners and consistent results across inspections.
• Durable, Ergonomic Knurled Construction for Long Tool Life: Built to withstand shop-floor use with a comfortable grip and robust materials, ensuring longevity and dependable performance mile after mile.

Use the JBO Thread Plug Gauge to streamline in-process quality checks, improve workflow on assembly lines, and ensure threaded holes meet exact standards for reliable fit and performance in critical applications.