The JBO Thread Ring Gauge (GO) for UNF Right-Hand threads is a precision go gauge designed to verify external thread diameters on No. 6 x 40 UNF fasteners and components. It’s ideal for machine shops, quality control labs, and field maintenance where reliable GO checks are essential to ensure parts meet strict UNF specifications.

Crafted from hardened steel with tight dimensional control, this GO ring gauge resists wear in busy environments, delivering durable, repeatable checks that help you confirm proper thread engagement at a glance.

• UNF 2A Right-Hand GO Gauge: Precisely sized for No. 6 x 40 UNF right-hand threads, enabling fast, unambiguous GO checks that quickly confirm parts meet specifications.
• Hardened steel construction: Built to withstand daily use, resisting wear and maintaining accuracy to extend service life in production and QC settings.
• User-friendly inspection tool: Intuitive ring design supports easy alignment and rapid identification of compliant threads, reducing inspection time and downtime.

With the JBO GO Ring Gauge, you gain dependable, repeatable thread verification that streamlines quality control, speeds up assembly readiness, and helps protect downstream performance. Its durable build and precise GO checks support consistent results across parts and shifts, giving you confidence in every measurement.