Hi! Today I would like to show you how I made this dual thread screw.
You can use this screw with both left and right threaded M24 nuts.
Pure magic.

My video
youtube.com/watch?v=YOmxHSSrW1g

Caution: Print it slowly! From what I've learned from printing Steiner3D Revolver 20-30 mm/s is better:
https://cdn.thingiverse.com/renders/48/01/e2/49/e7/333410da006f4c201809678ffe331c3e_display_large.jpg

If you have problem with moving the parts you can try what @ramseymarka did:
"I printed the bolt 99% on X, Y axis"
https://www.thingiverse.com/make:850935

Inspired by this 9gag post:
https://9gag.com/gag/aWxpxw4

Check Trianglelab on Aliexpress:
http://s.click.aliexpress.com/e/ogUL48V2 - affiliate link, you pay nothing extra, I get small change, I am not sponsored by them, they just have great price/value ratio for 3D printer parts and a free shipping.

You can support me in various ways:

• smash the like button and subscribe to my channel:
  https://bit.ly/medyk3Dsub - that really helps me, thanks!
• buy me a coffee (filament in fact):
  https://www.buymeacoffee.com/TmjEfCc

For more info about me you can visit:
Thingiverse: https://bit.ly/medyk3Dthingiverse
MyMiniFactory: http://bit.ly/medyk3Dmmf
My blog: http://medyk3d.com
Lbry: https://lbry.tv/$/invite/@medyk3D:e
Twitter: https://twitter.com/DMedyk3/
Instagram: https://www.instagram.com/medyk3d/

Share the love and 3D print everything.

Many thanks to the whole 3D printing community.

medyk3D #3DPrinting #DoubleThreadedScrew

EDIT: 2020-09-09
I messed up. The nuts are ok, but the screw was in the version without extra clearance on the perimeter. I reuploaded the screw stl.