The JBO Thread Plug Gauge is a UNC Go-No/Go inspection tool designed to verify threaded holes against Unified thread standards. It is configured for right-hand 3/8 x 16 threads with a 2B tolerance, making it a dependable choice for manufacturers, automotive shops, and aerospace suppliers that require fast, reliable thread verification to ensure proper fit and function.

With its go/no-go design, inspectors can quickly identify conforming and non-conforming threads, enabling fast, at-a-glance judgments and helping reduce rework and assembly delays. This ensures that threaded components will thread smoothly into assemblies and meet required specifications on every part.

• Go/No-Go Quick-Check: The go/no-go design provides immediate pass/fail indication for UNC threads, speeding up quality checks and reducing inspection time.
• Precise UNC 3/8 x 16 Right-Hand, 2B: Engineered to standard 3/8-16 UNC right-hand threads with 2B tolerance to ensure consistent, repeatable measurements across lots and suppliers.
• Easy Handling and Durable Construction: Knurled body and robust ends offer a secure grip and straightforward alignment during setup, even in busy shop environments.

This gauge helps streamline quality control, supports reliable fitment across threaded assemblies, and contributes to consistent results in manufacturing, automotive, and aerospace workflows. Use it to accelerate inspections, reduce downtime, and maintain confidence that every part meets the required UNC thread specifications.