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Old 11th September 2008, 10:01 PM
buzzy bee buzzy bee is offline
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UNC has one thread in 6 different to BSW or the other way around doesn't it?
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Old 11th September 2008, 10:16 PM
weidner weidner is offline
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Quote:
Originally Posted by buzzy bee View Post
UNC has one thread in 6 different to BSW or the other way around doesn't it?
The pitches are the same in the smaller sizes , except for the Joker . 1/2" BSW is 12 tpi , 1/2" UNC is 13 tpi . Tell this to the blind idiot who ruined every nut and bolt in a whole drawerful which we used for clamping jobs onto our milling machines .

BSW thread angle is 55 degrees , UNC is 60 degrees .
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