Found an old metal case lying around and thought of using it to store my new nozzles, so after a couple of minutes in fusion360 I got it done.
It doesn't have the threads but with my printer I only needed to screw the nozzles without any issues (they went in really smoothly).
BQ easy go PLA
I used only a bottom and walls. I didn't use top layer so I could print it faster (also because it's not needed as it's not seen in this case. Then I flipped and used the bottom which is printed as the now seen top.
It's made for my box, so I don't know if it would fit any other