The JBO Thread Ring Gauge (GO) - UNJF - Right Hand - 3A - 1 x 12 is a precision Go gauge designed to verify external threads on fasteners and machined components. Sized for 1" nominal diameter with 12 threads per inch, it helps inspectors, machinists, and quality teams confirm parts meet UNJF right-hand thread standards.

• Hardened steel construction for long life: Resists wear and corrosion in busy workshops, preserving accuracy across thousands of inspections.
• UNJF GO gauge calibrated for right-hand threads: Delivers fast pass/fail checks for 1 x 12 UNJF right-hand threads, speeding quality control and minimizing rework.
• Ergonomic, user-friendly design: Knurled outer ring and smooth internal threading provide secure handling and quick, confident identification of compliant parts.

Using this GO ring gauge in your QC workflow helps you verify thread integrity quickly, minimize guesswork, and prevent non-conforming parts from moving to assembly. Its durable construction reduces replacement costs and downtime, while the standard UNJF right-hand configuration supports consistent, interchangeable results across batches.