The original felt a little too high so I made it adjustable since the Eddy needs to be 2mm from the plate while the nozzle is at z=0. The "M3 Nut" version has a wall to help put the nut on during the mounting process, It was a pain for me to put on the right nut and screw since it was hard to reach. I managed to get lucky and get it on with enough effort so I haven't had the need to use the second version. 

I suggest just printing the mount with the wall since you can snap it off if it is useless to you. 

You will need a longer M3 screw. I used an M3*30.