MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
The only difference between modern imperial and metric threads is numbers. Plug in the right numbers and you'll get the right sizes.
i.e. major diameter in metric is (5/8)*25.4, and pitch in metric is 25.4/18. Plug those into a "metric" generator and you'll get an imperial size.