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thread gaging

Threads in Production: Callouts, Class of Fit, and Gaging That Prevent Repeat Rejects

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Go/no-go thread plug gage and thread ring gages used for production CNC machining inspection

Thread gaging helps confirm that machined threads meet the print requirement before parts move through production or assembly.

Threaded features are one of those production details that does not always get attention until parts start failing inspection or assembly.

A tapped hole, outside thread, set screw hole, port, or small threaded feature may only take up one line on the drawing. But in repeat production, that one line can create scrap, rework, assembly problems, inspection delays, and supplier/customer disagreement if the callout is not clear. Read More