Ender 2 universal bed leveling knob

Universal Bed leveling knob. Put in either regular or self-locking M4 nut. Low profile, fits on all 3 screws, does not crash into Y-endstop.

If you use self-locking nuts, counter-lock the screw to the bed (see first picture), otherwise the screw will just turn when you try to screw on the knob.

Supports might be necessary in the place where the nut goes.