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NANO SEIMITSU CO., LTD.
Nano Seimitsu world class sorting machines / visual inspection!
Also manufacture and sales of shafts and fastener parts as well!

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Automated GO / NO-GO Inspection for Internal Threads

Is checking nuts with plug gauges a time-consuming task for your team?
Each hole needs to be checked one by one—screwing in the plug gauge and turning it manually.
As the quantity increases, it requires more time and labor, and results can vary depending on the operator.
In addition, Burrs or chips can cause resistance, making it harder to judge accurately.
​This can be solved with an automated GO/NO-GO gauge inspection system!

Video:

Key Features & Benefits


• Labor reduction
Inspection speed of 40–60 pcs/min, reducing manual work by more than half
• Improved quality
Equipped with a torque sensor for stable and consistent judgment, independent of operator skill
• Cost reduction
Prevents inspection errors and rework, leading to significant overall cost savings
• Flexibility
​Based on a standard machine. By changing jigs or attachments, it can handle similar sizes and shapes

Specifications


● With an index mechanism, the system supports nut sizes from M6 to M16.

● GO side detects thread defects, drilling issues, and tapping defects.

● NO-GO side allows setting up to two thread turns for precise judgment.

While camera inspection is useful, in cases requiring strict specifications and precise standards, gauge inspection remains essential.

This automated system enables both reduced workload and improved inspection accuracy at the same time.

If you are interested in automating GO / NO-GO inspection for nuts, please feel free to contact us.

 

Latest Update 02 Jun 2026
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