The JBO Thread Plug Gauge is a precision tool for quick, reliable verification of metric fine-thread holes. It’s specifically designed for M36 x 2 right-hand threads, using a Go/No-Go design to allow fast, decisive checks during setup and quality control.

Built with hardened steel and a knurled body, this gauge delivers long-lasting performance and a secure grip for repeated use in demanding shop environments.

• Go/No-Go design for fast hole-thread verification: Quickly confirm whether the M36 x 2 right-hand threads in a hole meet the tolerance; the Go end should thread in smoothly, while the No-Go end should not pass beyond the limit, reducing inspection time and rework.
• Metric fine-thread compatibility (M36 x 2, Right-Hand, 4H): Precisely matched to metric fine threads and 4H tolerance to deliver consistent, repeatable results across production runs.
• Dual-ended design with color-coded end markers for quick Go/No-Go reference: The two ends provide clear Go and No-Go references, with color-coded markers to help operators identify the correct end at a glance and minimize setup errors.

Used as part of incoming or in-process quality checks, this gauge helps you make confident decisions fast, accelerate assembly workflows, and reduce costly rework due to mismatched threads. Its rugged hardened-steel construction and straightforward Go/No-Go action deliver dependable performance in daily use, so you can trust accurate thread verification with every measurement.