The JBO Thread Ring Gauge (GO) – UNF – Right Hand – 2A – 7/16 x 20 is a precision inspection tool designed to quickly verify external thread diameters. Ideal for engineers, machinists, quality teams, and shop-floor technicians, it ensures that UNF threaded components meet exact size and fit requirements at a glance.

Manufactured as a GO gauge from hardened steel, this ring gauge delivers durable performance in busy environments. Its right-hand orientation and robust construction resist wear over time, keeping measurements reliable through frequent use in assembly lines, workshops, and field service alike.

• Precise GO verification for UNF threads: Helps quickly confirm correct external thread diameter and pitch on UNF right-hand threads, enabling fast, standards-compliant acceptance of parts.
• Rugged hardened steel construction: Designed to withstand repeated use in demanding environments, resisting wear to maintain accuracy and extend service life.
• Easy-to-read, user-friendly inspection: Intuitive design supports rapid conformance checks, reducing inspection time and improving consistency in QC workflows.

With the JBO GO thread gauge, you gain confidence that every threaded connection meets specification, speeding up inspections and reducing rework. Its precise dimensions and durable build make it a reliable partner for manufacturing, assembly, and maintenance tasks requiring UNF threads (7/16 x 20) in right-hand 2A class tolerances.