The JBO Thread Plug Gauge is a precision tool designed for metric coarse threads, specifically tuned for M20 x 2.5. It uses a Go/No-Go design with right-hand threading to quickly verify threaded holes, helping engineers, machinists, and quality teams confirm correct fit and function. Ideal for workshops and production environments where fast, reliable thread verification matters.

Crafted from hardened steel, this gauge stands up to daily use, resisting wear and deformation to deliver consistent results over time. The Go/No-Go testing approach makes acceptance checks straightforward, reducing guesswork and helping ensure components assemble smoothly from part to part.

• Go/No-Go Quick Checks: A simple two-step test confirms both the go (fits) and no-go (does not exceed) limits for M20 x 2.5 coarse threads, speeding inspections and improving part consistency.
• Hardened Steel Construction: Built to endure demanding workshop conditions, offering durability, resistance to wear, and long service life across many inspection cycles.
• Precisely Matched for M20 x 2.5 Coarse Threads: Specifically designed for metric coarse threads with right-hand orientation and 6H tolerance, delivering reliable, repeatable measurements that align with standard production parts.

Using the JBO Thread Plug Gauge helps you streamline quality checks, reduce rework, and ensure reliable thread engagement across assemblies. Its durable build and precise sizing give you confidence in every measurement, supporting faster workflows and consistent results in manufacturing, assembly, and maintenance tasks.