Better Z-Axis adjust for K8200

When adjusting the original Z-Adjust of the K8200 from time to time, you will realize, the nuts got loose and are not easy to be tightened.

It can be easily replaced with this part here. Two small nuts inside the hole will keep the screw firmly in place and allow for easy future adjustments. As you see in the pic, I've added some extra nuts, two at the bottom and one on top of the unit.

This is a mod from thing:319550, changed for easier assembly (no need to remove the two lower screws first), plus some other adjustments.