Meet the JBO GO thread ring gauge for UNF threads — precisely sized for 1/4 x 28 right-hand threads and 2A class. Designed for engineers, machinists, and quality teams, it delivers quick, reliable verification of external threads during inspection and assembly.

• Accurate GO gauge for UNF 1/4 x 28 right-hand threads: Quickly confirms external threads meet the GO dimension, enabling fast pass/fail decisions and smoother workflow.
• Hardened steel, wear-resistant construction: Built to withstand daily use in busy environments, maintaining dimensional integrity and long-lasting performance.
• Ergonomic, user-friendly design: Knurled outer surface provides a secure grip and easy alignment, reducing inspection time and operator fatigue.

Using this ring gauge, you gain confidence that every threaded part meets the UNF 1/4 x 28 GO standard, supporting consistent fit with mating components and improved overall quality. The durable construction reduces replacement costs and minimizes downtime on the shop floor while speeding up QA checks and ensuring reliable results across demanding applications.