I got my hands on a nice expensive kitchen faucet from Grohe but with their special easy to install threated plastic mount.
Sadly the first owner broke the system.

I wanted to replace its with a metal one from amazon but couldn't find the right adapter for it.

I needed an adapter ring threated 32 on the inside and 40 on the outside without anything sticking out.

I had doubt it would hold but surprisingly it works perflectly.
I mounted it on the sink and applied more force that it would daily and it didn't flinch… and it if breaks somehow one day I can just reprint it.

Hopefully it can help someone for the same issue or something else.
Might need +/- 1% scalling depending on your settings. Not been printed on a bambu at the time.

PETG Eryone used, 0.12 layers.