Use this on the V3 Kirigami bed to get the same Y offset as on the V2 and remove the back/forward wiggle which happens because there is not enough tension on the springs.
It can also be used to fix the maximum offset of the V3 by putting it backwards.
You will need three of these.
For better results use 2 large M3 washers, one between the spring and this plastic nut, one between the bed and the M3 tightening nut on the other side.
The author hasn't provided the model origin yet.