CNC Kalkulator

Thread Units

Expresses nominal diameter and thread pitch in metric and imperial units.

Formulas

TPI = 25,4 / P [mm]

Sources: NIST Special Publication 811, Appendix B: Conversion Factors. https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b9

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