This is a remix of both https://www.thingiverse.com/thing:4690959 and https://www.thingiverse.com/thing:4692379.
I just added the hex head to the bolt and to the nuts. Video of it in action here: https://youtu.be/EvKpTli56Ho
LH_Nut.stl | 154.3KB | |
Nuts_Hex.stl | 319.5KB | |
RH_Nut.stl | 165.3KB | |
Tall_2_Way_Bolt_HexHead.stl | 887.9KB |