This screw can be used to mount the Raspberry pi hq camera using my "Raspberry Pi HQ camera mount x-axis for Prusa I3 MK3/S/S+".
The length of the screw is 18 mm.
https://www.printables.com/de/model/419187-raspberry-pi-hq-camera-mount-x-axis-for-prusa-i3-m
The author marked this model as their own original creation.