The JBO Thread Ring Gauge (GO) for BSP (G) is a precision go gauge designed to verify external BSP threads on pipes and fittings. Sized for 1/2 x 14, it helps plumbers, engineers, and manufacturers quickly determine whether a thread conforms to the BSP G standard, ensuring a proper seal and reliable fit.

With its dedicated go-side design, this gauge delivers fast pass/fail checks in busy workshop environments, reducing inspection delays and rework while supporting quality control across plumbing, fluid handling, and mechanical assemblies.

• Go gauge for BSP (G) 1/2 x 14 (Right Hand, Tol. B): Quickly confirm that external threads match the BSP G standard, delivering a clear go/no-go result for reliable fittings.
• Precision-machined to exact dimensions: Each gauge is crafted to tight tolerances, ensuring repeatable measurements and consistent results across inspections.
• Rugged, easy-to-handle design: Knurled outer surface and robust construction provide secure grip and long service life in demanding workshop conditions.

This gauge helps you streamline your workflow by enabling fast, accurate thread verification before assembly, preventing mismatches, leaks, and downtime. By confirming only properly formed BSP G threads are used, you improve seal integrity, reduce returns, and boost overall project confidence across plumbing, fluid handling, and engineering applications.