The JBO Thread Ring Gauge GO is a precision inspection tool designed to verify external BSP (G) threads on fittings, adapters, and pipework. It’s built for plumbers, engineers, technicians, and quality-control teams who need quick, reliable confirmation that a thread will assemble properly and seal consistently. This GO gauge is calibrated to BSP (G) standards and sized for 3/8 x 19 right-hand threads, helping you reduce guesswork during inspections and fieldwork.

• Go/No-Go BSP (G) verification: The GO design provides an immediate pass/fail indication for conforming external threads, speeding inspections and reducing rework in production, maintenance, and field service.
• Durable, corrosion-resistant construction: Crafted for daily use, the sturdy ring gauge resists wear and corrosion, delivering long-lasting accuracy in busy workshop and onsite environments.
• Accurate 3/8 x 19 right-hand sizing (Tol. B): Precisely matched to common BSP (G) threads with right-hand orientation, ensuring repeatable, dependable measurements across multiple checks.

Using this gauge streamlines workflow by enabling fast, confident verification of thread quality, minimizing downtime and ensuring fittings meet BSP (G) standards from first inspection to final assembly. The combination of reliable sizing, rugged build, and an easy go/no-go test helps technicians deliver consistent results, protect seals, and maintain high-quality workmanship across plumbing, fluid handling, and engineering projects.