Designed this nut to be used with the TH3D EZABL bed leveling sensor. The extremely thin nut that comes on the sensor was to difficult to tighten by hand. Using a wrench was an overkill for the application.
The wider nut enables tightening with your fingers alone.
The way I have mine setup is glued the top nut to the body of the sensor after setting it 2mm up from extruder tip as per the instructions. This keeps the sensor at the proper height and the printed nut is used on the bottom which allows for easy removal and re-installation.
The smaller diameter faces to the sensor mount.

Creality

CR-10

No

No

.12

100