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Jelmer L

Tolerance on Cosmetic Thread Angle


For cosmetic thread, the top angle is 60°.
What is the tolerance on this angle?

I checked the internet and ISO norms multiple times but cannot find the answer.
Is this dimension even tolerated?

I only found the British standerd what is telling something about this aspect, but I need the ISO version.

For example, what is the tolerance on the top angle of M32 x 1.5     (fine pitch)?



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