The JBO Thread Plug Gauge is a precision go/no-go tool engineered to verify threaded holes quickly and reliably. With distinct go and no-go ends and a comfortable knurled grip, it’s an essential inspection aid for machinists, quality teams, and shop technicians across manufacturing, automotive, and aerospace sectors.

Sized Pg 7 x 20 with a right-hand thread, this gauge helps confirm that holes meet Unified thread standards and specifications. The straightforward go/no-go check makes it easy to identify parts that fit or require adjustment, reducing guesswork and speeding up assembly and quality control.

• Go/No-Go Quick Check: Two-ended design provides instant pass/fail for threaded holes, speeding inspections and reducing guesswork.
• Standard Pg 7 x 20 Right-Hand Size: Precise dimensions aligned with Unified thread standards for repeatable, reliable measurements across parts.
• Rugged, User-Friendly Build: Knurled grip and robust, corrosion-resistant construction deliver durable, easy-to-handle performance in busy workshops.

This gauge helps you streamline quality control, minimize rework, and ensure that threaded components thread in cleanly and function as intended. By delivering consistent results on every check, it supports faster production cycles and greater confidence in every build.