The JBO Thread Ring Gauge GO for UNC threads is a dedicated go gauge designed to confirm external thread diameters quickly and reliably. Sized No. 10 x 24 with a right-hand thread and 3A class, it’s an essential tool for machinists, inspectors, and quality teams working to verify compliance with standard UNC fasteners and threaded components.

Machined from hardened steel for lasting accuracy, the gauge resists wear in busy workshops and maintains its calibration over time. A knurled outer surface provides secure grip, making inserts and checks smooth and repeatable, even in tight spaces.

• Precise UNC (Go) Measurement: Provides quick, reliable confirmation that external threads meet the UNC 3A standard for No. 10 x 24, enabling fast pass/fail checks during setup and quality control.
• Hardened Steel Construction: Delivers durable, long-lasting performance in demanding environments, maintaining accuracy and minimizing replacement costs over the gauge’s life.
• Easy, Quick Inspections: User-friendly Go gauge design allows straightforward insertion and immediate conformance indication, reducing inspection time and downtime.

In daily use, this gauge helps you validate thread fit during setup, catch deviations before parts move to assembly, and maintain consistent results across batches—all with durable, precise performance you can trust.