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Old 05-13-10 | 08:47 PM
  #13  
FBinNY
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From: New Rochelle, NY

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Originally Posted by Al1943
Yes but it's generally not advisable. Good threads are "rolled" not cut. Cut threads are more likely to break.
The spoke threading devices used also roll the threads.

It isn't a matter of strengh, it's a matter of the relative diameters of the threaded and unthreaded sections. You can't cut the thread into a spoke because the blank OD is smaller than the thread OD.

For cut threads the blank is equal to the thread's major (or outside) diameter, and for rolled threads the blank is equal to the "pitch" diameter, or halfway between the major and minor diameter. In the rolling process no material is removed, but material is flowed from the "valleys" to form the "peaks".
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Last edited by FBinNY; 05-13-10 at 08:51 PM.
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