03-08-2011, 07:16 PM
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#9
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Lifer
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Join Date: Feb 2009
Location: ...on the 'ol Erie Canal...
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Here's the site I got my info from -
http://mdmetric.com/tech/thddat8.htm
Whitworth doesn't list 30tpi for *any* size screw thread...
__________________
I like my coffee the
way I like my women...
...Cold and bitter... 
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