The JBO Thread Plug Gauge is a precision tool designed for metric coarse threads. It’s essential for inspecting threaded holes in machining, assembly, and quality-control workflows where precise fitment matters. This go/no-go gauge is calibrated for M16 x 2 coarse threads, enabling quick, reliable verification of hole acceptance during production or inspection.

Durable and ready for daily use, the gauge is crafted from hardened steel to resist wear and maintain accuracy in busy shops. Its right-hand orientation and 6G tolerance class provide dependable performance when verifying components against standard metric coarse-thread specifications.

• Go/No-Go design: Enables quick, decisive checks of threaded holes to confirm they meet spec, reducing inspection time and guesswork.
• Hardened steel construction: Built to withstand daily use in demanding environments, delivering long-lasting accuracy and reliability.
• Metric coarse thread focus (M16 x 2, Right-Hand): Specifically calibrated for M16 x 2 coarse threads with right-hand threading, ensuring consistent gauge readings and compatibility with common fasteners.

Using this gauge helps streamline quality control, speed up part validation, and minimize downtime. The clear go/no-go results empower teams to move parts to assembly with confidence, while the durable construction reduces replacement costs and maintenance. With the 6G tolerance, you can rely on repeatable measurements across lots, supporting tighter tolerances and better overall performance in your manufacturing or workshop workflows.