ISO screw thread
thingiverse
This generates ISO screw threads and common parts using them. It's meant to be used as a library (include <ISO_screw_thread.scad>;), but if you just want a simple part, just add the module call to the top of the file. refer to https://en.wikipedia.org/wiki/ISO_metric_screw_thread and https://en.wikipedia.org/wiki/ISO_965
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With this file you will be able to print ISO screw thread with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on ISO screw thread.