The JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external UNEF threads on fasteners and components. It is specifically configured for right-hand UNEF 2A threads in the 1-1/2 x 18 size, making it ideal for production, assembly, and inspection in manufacturing, automotive, and aerospace environments.

Built to help identify non-conforming threads quickly, the NoGo design provides a clear pass/fail signal that supports reliable fitment and quality control. Crafted from hardened steel, this gauge stays accurate through repeated use in busy shops and laboratories.

• UNEF 2A Right-Hand 1-1/2 x 18: Specifically calibrated to test external UNEF threads on right-handed fasteners, delivering reliable pass/fail results that align with dimensional standards.
• NoGo design for fast conformance checks: The NoGo feature provides an unmistakable indication of non-conforming threads, enabling quick inspection and reducing assembly errors.
• Hardened steel construction for durability: Built to withstand frequent use in demanding environments, maintaining measurement stability and extending gauge life.

Using this gauge helps streamline thread inspection, reduce scrap and rework, and ensure consistent, reliable assembly across production lines and service operations. The JBO NoGo gauge supports faster quality checks, improves traceability, and helps you meet stringent industry standards with confidence.