There is a standard for metric threads with a finer inclination/pitch, no need to create anything special for the purpose: https://en.wikipedia.org/wiki/ISO_me

There is a standard for metric threads with a finer inclination/pitch, no need to create anything special for the purpose: https://en.wikipedia.org/wiki/ISO_metric_screw_thread https://en.wikipedia.org/wiki/ISO_metric_screw_thread