The JBO Thread Plug Gauge is a precision inspection tool designed for metric coarse threads. It helps manufacturers, engineers, and technicians quickly verify threaded holes meet the M30 x 3.5 specification, ensuring the right fit and reliable assembly every time.

Built from hardened steel for durability, this left-hand, 6G go/no-go gauge is designed for repeated use in busy workshops and production lines, delivering consistent results across batches.

• Go/No-Go design for fast, confident checks: Quickly determine if threads meet tolerance by testing for full engagement (Go) and adequate clearance (No-Go), reducing guesswork and rework.
• Durable hardened steel construction: Withstands daily use, resists wear, and maintains accurate dimensions over time.
• Size and orientation tailored to metric coarse threads: Specifically for M30 x 3.5 coarse threads in a left-hand configuration with 6G tolerance, ensuring reliable, repeatable checks.

By using this gauge, you streamline setup, speed up quality checks, and minimize downtime. It provides a clear pass/fail indicator, making it easier to train new staff and maintain consistent results across machines and operators. Invest in the JBO Thread Plug Gauge to improve accuracy in your threaded assemblies and reduce guesswork in your QC workflows.