The JBO Thread Plug Gauge is a precision go/no-go tool crafted to verify internal threads against Unified standards. It’s ideal for manufacturers, automotive shops, aerospace labs, and maintenance teams that need quick, reliable checks of threaded holes to ensure proper fit and performance.

With a compact, two-ended design, this gauge delivers a clear pass/fail result in a single instrument, helping inspectors make fast, confident decisions without guesswork.

• Go/No-Go end pair: One end checks that a thread can be engaged (Go) while the other end confirms it cannot (No-Go), enabling rapid, unambiguous acceptance or rejection in a single measurement.
• UNEF Right-Hand 7/16 x 2, 2B fit: Precisely sized for UNEF right-hand threads at 7/16 x 2 with a consistent 2B fit, delivering repeatable results across parts and production runs.
• Durable, easy-to-handle construction: Robust gauge body with a textured knurl and reliable finish, providing secure grip and long service life in busy shop environments.

This plug gauge helps you streamline quality control, reduce inspection time, and minimize rework by delivering dependable thread verification. Use it to standardize checks across teams, accelerate assembly planning, and ensure that every part meets the required UNEF threading specifications for reliable, repeatable performance.