I've had this hanging clothing storage thing (I use it for my underwear and socks) from IKEA for a while, but the metal bracket it came with was not designed to fit it on thinner closet doors... So I had to make my own! I used most of the measurements from the original but changed some to fit my thinner closet door It's still like 1mm too wide for fit over the door tight, but I wanted to keep a bit of extra clearance and wiggle room to make sure it would all fit
Anyway, pictures speak a thousand words.. so.. here it is