The JBO Thread Ring Gauge (NoGo) – Metric Coarse, Right Hand, 6g, M20 x 2.5 is a precision inspection tool designed to verify external thread diameters on metric coarse fasteners and components. It’s ideal for engineers, machinists, quality inspectors, and assembly teams who need fast, reliable go/no-go verification to ensure parts meet the M20 x 2.5 coarse right-hand standard.

Built from hardened steel for lasting durability, this gauge resists wear in busy workshops and supports accurate, repeatable checks across daily inspections. Its clear, easy-to-interpret results help you quickly identify non-conforming parts, reducing rework and speeding quality control.

• Metric coarse NoGo gauge for M20 x 2.5, right-hand: Quickly verify external thread diameters against the standard, delivering a clear pass/fail result to prevent misfits and unnecessary rework.
• Hardened steel construction: Designed for durability and long service life, resisting wear and corrosion so readings stay stable through frequent use.
• User-friendly go/no-go inspection: Intuitive sizing and straightforward indications make it easy to spot non-conforming parts, speeding setup and reducing inspection time.

This gauge helps you maintain consistent thread quality across batches, streamline your inspection workflow, and ensure reliable mating with metric coarse components. With a robust build and simple operation, you’ll spend less time checking parts and more time building quality into every assembly.