09-12-07, 07:59 PM
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Join Date: Aug 2004 Location: Sussex > .
Posts: 1,857
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Quote: | Originally Posted by jamesp Think you might mean 0.8 mm pitch. ).8 tpi would mean about two turns in the length of your little finger.
0.8mm pitch works out at 31.xxxx T(hreads) P(er) I(nch), which at 3.4mm diameter makes it 6 UNC as a prime candidate.
exact figures would be 32 tpi, 0.138" diameter(3.505mm) | yes James your right :-) BSC (British Standard Cycle) Thread Data
5/32 seems to fit almost :-)
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