The JBO Thread Ring Gauge (NoGo) is a precision measurement tool designed to verify external BSP (G) threads on pipe fittings. Sized for 3/8 x 19 and right-hand configuration, it helps plumbers, engineers, and QA teams quickly confirm that fittings will thread correctly and seal properly.

Designed for daily use in workshops, field service, and production environments, the No-Go design makes out-of-tolerance threads easy to identify at a glance—saving time and reducing the risk of leaks in critical piping systems.

• Precise BSP (G) No-Go dimensions: Quickly verify external thread diameters against BSP (G) standards to identify undersized or oversized threads, reducing guesswork and ensuring proper fit and seal.
• Right-Hand Tol. B configuration: Optimized for common right-hand BSP threads, delivering consistent measurements across fittings and batches.
• Rugged construction with clear marking: Durable metal body with a knurled edge for easy handling and a distinct index marker for fast alignment, built to withstand daily shop and field use.

This gauge helps streamline inspections, minimize downtime, and deliver reliable, leak-free connections in plumbing, fluid handling, and engineering projects. With its precise tolerances and sturdy construction, you can buy with confidence knowing your BSP (G) fittings meet the required standards every time.