Re: Metric

David Beierl

 I can cut external threads that accept a commercial nut with a calculated thread error of up to 6% for .7 to 3 mm pitch

I would think that "will accept the nut" is too loose a criterion, unless the application could be served by a single-turn nut.  That would imply that you are willing to allow deformation of up to one whole thread-pitch under load before each of the few threads in the nut make contact.


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