The JBO Thread Ring Gauge (GO) – UNF – Right Hand – 3A – 5/16 x 24 is a precision measurement tool designed to quickly verify external threaded diameters. It’s ideal for manufacturers, machine shops, maintenance technicians, and QA teams that need fast, reliable checks on threaded components to confirm they meet exact size and fit requirements.

Crafted from hardened steel with a durable finish, this GO gauge delivers dependable performance in demanding work environments. Its straightforward design makes it easy to identify whether a part conforms to the 5/16 x 24 UNF right-hand 3A standard, helping you keep production moving and quality tight.

• Precise GO gauge for 5/16 x 24 UNF threads: Engineered to exact GO size for the 5/16 x 24 UNF, Right Hand, 3A specification, enabling fast, repeatable pass/fail inspections of external threads.
• Durable hardened steel construction: Built to resist wear and maintain accuracy in busy workshops, delivering long service life and consistent measurements over time.
• Clear conformance and quick inspection: Intuitive design provides immediate feedback on whether a part fits within tolerance, speeding up inspections and reducing downtime.

This gauge helps you achieve reliable, repeatable thread checks that support quality control and precision engineering across assembly, machining, and maintenance workflows. By streamlining setup and verification, it minimizes rework, supports compliance, and offers a durable, trusted solution for daily use in demanding environments.