See if this helps
http://www.boltscience.com/pages/glossary.htm#m
"Alf Sesma" wrote in message
news:40868460$1_3@newsprd01...
> Hi there, when I make a threaded hole in a part, I see options like Class
> and Diameter (minor, major, etc.) but I don't know what these options
mean?
> where can I find information about the use of this features?
>
> Thanks in advance!
>
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