The JBO Plug Gauge - UNC (STI) Right-Hand is a precision measuring tool designed to verify Unified National Coarse (UNC) screw thread inserts (STIs). Engineered for reliability in manufacturing, automotive, and aerospace environments, it helps inspectors confirm the pitch diameter and proper engagement of UNC STI inserts with consistent, repeatable results. The gauge features an ergonomic knurled body with a contrasting center stripe and color-coded end collars for easy orientation during checks.

This specific gauge is sized No. 10 x 24, 2B tolerance, and includes DAkkS-calibrated traceability to ensure measurements meet international standards. The right-hand configuration supports standard handling in STI insert work, while the robust construction and precisely machined ends are built for repeated use in busy workshop environments.

• DAkkS-traceable calibration: Provides documented, traceable accuracy for QA records and audits, helping you meet stringent quality-system requirements.
• UNC (STI) pitch-diameter verification: Designed to accurately check the pitch diameter of UNC STI inserts, ensuring correct fit and reliable performance in assemblies.
• Ergonomic, durable, dual-end design: Knurled body with color-coded ends offers secure grip and quick orientation, enabling fast, repeatable checks in busy workflows.

Using the JBO UNC (STI) Plug Gauge streamlines inspection and acceptance testing, reducing rework and downtime while improving consistency across parts and assemblies. With DAkkS calibration, you gain confidence in your measurements and documentation, helping you meet quality expectations from engineering, manufacturing, and regulatory stakeholders.