Fine-pitch allthread?

Hi all,

I'm looking for some fine-pitch (40tpi would be fine, finer would be finer)
1/4" allthread to make a small, ultra-fine resolution leadscrew. Does
anyone know if such a thing exists? I haven't found any in the usual
places--MSC, McMaster-Carr, Small Parts, etc.

Thanks,

Randy

Randy Gordon-Gilmore ,----.___________ ______________ _________________
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