Thread: 1/8" BSP Tap
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Old Sep 25, 2010 | 05:27 PM
  #5  
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st3v3
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1/8 npt is 27tpi and a tapered thread with 60 degree inclusive angles .405" od

where 1/8 bsp is a 28tpi whitworth and 55 degree inclusive angles .383" od
Last edited by st3v3; Sep 25, 2010 at 05:29 PM.
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