The JBO Thread Ring Gauge (NoGo) is a precision tool designed to verify external UNC threads with confidence. Ideal for manufacturing, automotive, and aerospace environments, it helps quality teams quickly confirm that fasteners and mating parts meet Unified thread standards. The NoGo design provides an immediate, visual indication of nonconforming threads, so you can trap mismatches before they proceed to assembly.

Engineered for right-hand UNC threads in the 1-1/2 x 6 size range, with a 2A tolerance class, this gauge aligns with common industry specs for reliable cross-checks. Crafted from hardened steel, it stands up to daily shop use, resisting wear and maintaining accuracy over thousands of inspections.

• NoGo-based pass/fail verification: The NoGo design delivers a clear, quick indication of nonconforming threads, helping you identify defects early and reduce rework.
• Hardened steel construction: Built for durability in busy work environments, it maintains precise measurements and resists wear over time for long tool life.
• Specifically sized for UNC right-hand threads (2A, 1-1/2 x 6): Matches standard fastener specifications, ensuring consistent checks and easy integration into existing QC workflows.

Using this gauge streamlines inspection, shortens setup and verification time, and increases confidence in thread integrity across parts and assemblies. It supports faster decision-making on the shop floor, reduces downtime, and helps ensure that every threaded connection meets the required fit and function.