came here trying to find those damn lian li motherboard clips
well either way if i dont find them we can make something very easy if you have a 3d printer
something like this
the green is the screw and the nut, nut you can even glue to the pastic.
you print the left red side and the right red side
blue is the computer case aluminum.
it can be done easly with tinkercard, and if you have a printer its pretty cheap.
plus its very easy to change and test, if you fuck up the height you cut it with 2 clicks and print another one.
a 3d design of the the original clips i don´t think its possible with a 3d printer , its too small for it to have the inner circle where the crew goes tight