Loose Blum hinges
I used Blum 'inset' hinges on face-framed kitchen cabinets made of white oak. (They get lots of use). I used Blum's screws. The hinges mount to the back of the face frame, and the self-close function applies a lot of force while the doors close.
The mountings repeatedly loosen, and eventually the door goes out of alignment. Tightening the screws restores everything 'as new' but it shouldn't be necessary. I will be out of town for several months, and I really don't want to tell my family they have to repeatedly tighten the screws on the cabinets!
Is there a more reliable solution?