The JBO Thread Plug Gauge is a precision go/no-go tool designed for quick, reliable verification of internal UNF threads. Specifically built for right-hand 3/8-24 UNF threads with a 2B tolerance, it helps manufacturing, automotive, and aerospace teams confirm threaded holes meet exact standards without guesswork. The go/no-go design delivers an immediate pass/fail result, enabling fast quality checks on the shop floor or in QA labs.

• Go/No-Go quick checks: Instantly determine whether a threaded hole conforms to spec, speeding up inspections and reducing setup time.
• 3/8-24 UNF RH accuracy: Precisely sized for standard UNF threads with 2B tolerance to ensure reliable hole acceptance and proper screw engagement.
• Durable, ergonomic design: Dual-ended gauge with a knurled body for secure grip and durability, built to withstand daily use in busy workshops and production environments.

Using the JBO Thread Plug Gauge streamlines thread inspection, minimizes downtime, and improves first-pass quality. It supports consistent results across teams, helps prevent misfit parts, and enhances overall reliability of threaded assemblies in manufacturing, automotive, and aerospace applications.