i tried a lot to fix my Z Wobble,
annoyed by all the not really working things on thingiverse and so i decided to design my own.
Now you can try it for yourself, in case you want to fix it.
You dont need any additional screws or anything.
just print it, remove the original thread and put it on the new part.
then mount it on the x carriage, thread the threaded rod through it and your golden.
also make sure the threaded rod is fed properly in the coupler
you can see some results in the images
if there are any questions, feel free to ask!