The JBO Thread Ring Gauge (GO) - UNC - Right Hand - 3A - No. 12 x 24 is a precision GO ring gauge designed to verify external UNC thread diameters. It’s an essential tool for inspectors, machinists, and quality teams across manufacturing environments, enabling quick, reliable go/no-go checks on threaded components.

Manufactured from hardened steel with tight, meticulous machining, this gauge delivers durable performance in demanding workshops. Its precise dimensions ensure repeatable measurements, while the Go side makes it easy to identify conforming threads, supporting accurate quality control.

• Fast Go/No-Go Verification: Provides quick, repeatable checks of external UNC threads, speeding inspections and reducing downtime.
• Durable Hardened Steel Construction: Built to withstand daily use in busy shops, offering excellent wear resistance and long service life.
• Precise, Standards-Aligned Dimensions: Meticulously machined to ensure consistent measurements and easy identification of conforming threads.

Incorporating this gauge into your QC workflow helps you validate thread sizes with confidence, streamline inspections, and maintain tight tolerances across batches. It supports reliable assembly and consistent performance of threaded components like No. 12 x 24 UNC right-hand fasteners, reducing rework and helping your operations stay on track.