The JBO Thread Plug Gauge is a UNF Go-No/Go gauge designed to quickly verify threaded holes in parts and assemblies. It provides clear pass/fail feedback for compliant or non-conforming threads and is sized No. 6 x 40 with right-hand orientation and 2B tolerance for common UNF applications.

• Go-No/Go Verification for Quick Conformance: Quickly identify conforming vs. non-conforming threads with a simple pass/fail check, speeding inspections and reducing rework.
• UNF Right-Hand 2B Tolerance: Precisely sized for UNF right-hand threads with 2B tolerance and No. 6 x 40 geometry to align with standard hole specifications.
• Rugged, Ergonomic Design: Durable knurled body and precision ends enable repeatable measurements on busy shop floors and provide confident handling.

Using this gauge, inspectors, machinists, and quality teams can streamline hole inspections, reduce downtime, and improve assembly reliability by ensuring threaded holes meet spec before parts go into production. The Go-No/Go design minimizes guesswork, while the UNF right-hand 2B sizing ensures accurate, repeatable results across batches, helping maintain consistent quality and faster throughput.