The JBO Thread Plug Gauge is a precision go/no-go tool designed for metric coarse threads, specifically calibrated for M6 x 1 holes. This right-hand thread gauge helps technicians, engineers, and quality teams verify thread fit quickly and reliably, ensuring components assemble correctly and consistently across the production line.

Built for daily shop-floor use, it delivers straightforward pass/fail feedback that speeds inspection workflows and reduces guesswork during assembly, maintenance, and refurbishment tasks. The result is smoother operations, fewer chamfers of mis-threaded parts, and more confident decisions on fitment.

• Go/No-Go Design for Quick Verification: Allows fast, unambiguous checks of threaded holes, speeding inspections and reducing downtime by confirming proper thread engagement in seconds.
• Durable Hardened Steel Construction: Withstands repeated use in demanding environments, delivering long-lasting accuracy and reliable performance over many cycles of testing.
• Metric Coarse M6 x 1 Right-Hand Compatibility (6H): Precisely matched to standard metric coarse threads, ensuring consistent checks for right-hand M6 x 1 holes with 6H tolerance and reducing the risk of misfits.

Use the JBO Thread Plug Gauge to standardize thread verification across manufacturing and maintenance tasks. It supports faster decision-making, improves assembly reliability, and helps you maintain tight quality control without sacrificing workflow efficiency.