The JBO Thread Ring Gauge (GO) for UNC – Right Hand – 2A – 1/4 x 20 is a precision GO gauge designed to verify the external thread diameter of fasteners, fittings, and threaded components. Built for inspectors, machinists, and quality teams, it helps confirm parts conform to Unified UNC standards with reliable, repeatable results.

Manufactured from hardened steel, this gauge delivers durable wear resistance for demanding workshops and long service life. Its user-friendly design makes it quick and easy to identify properly conforming threads, supporting efficient quality control and precise engineering workflows.

• Accurate GO verification for UNC 1/4 x 20 Right Hand 2A threads: Quickly confirms proper external thread engagement and conformance, reducing inspection time and rework.
• Hardened steel construction for durability: Withstands frequent use in busy shops and harsh environments, delivering long-lasting performance.
• Ergonomic, easy-to-use design: Knurled edges and simple handling enable fast, repeatable measurements with minimal setup.

Using the JBO Thread Ring Gauge (GO) keeps your QC routine efficient and dependable. It provides clear guidance on thread conformity, helps minimize downtime, and supports consistent results across production, maintenance, and assembly tasks.