Threaded Fidget Widget v2
thingiverse
The bolt and nuts are threaded with a 2 start circular profile thread, but the bolt has both right and left handed threads cut into it. https://www.youtube.com/watch?v=Wr_aIqU6_FE
Download Model from thingiverse
With this file you will be able to print Threaded Fidget Widget v2 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 Threaded Fidget Widget v2.