The JBO Thread Ring Gauge (GO) for UNEF right-hand threads in the 2A class (5/16 x 32) is a precision inspection tool designed to verify external thread diameters quickly and reliably. Built for engineers, machinists, inspectors, and quality-conscious shops, it helps confirm parts meet exact UNEF specifications at a glance.

Crafted from hardened steel, its durable construction stands up to daily use in demanding work environments, while a user-friendly design makes it easy to identify properly conforming threaded components during routine QC checks.

• UNEf right-hand GO gauge for 5/16 x 32 (2A): Precisely sized GO ring gauge tailored to UNEF external threads, delivering quick, reliable go/no-go checks on every part.
• Durable hardened steel construction: Built to resist wear and maintain measurement accuracy across heavy use in busy workshops.
• Fast, easy inspection for quality control: Instant pass/fail feedback simplifies setups, reduces downtime, and supports consistent thread quality across batches.

By providing accurate, repeatable checks in a simple, intuitive format, this gauge helps you improve inspection speed, reduce rework, and ensure every threaded component meets the required UNEF 5/16 x 32 standard with confidence.