I'm trying to mount a smart doorbell on a doorframe. The problem is that the latter runs a decorative "pillar" made out of thin plastic (see photo) with a gap between the plastic and the wall underneath, so using anchors and screws in a straightforward way is problematic. To make things more interesting, the decorative surface is not flat. So I would appreciate any advice on the way to mount 2 screws there. So far, the things that come to mind are:
- Drill all the way and drive anchors into the underlying surface, then use long screws.
- Use some short butterfly anchors to fasten screws to plastic only (do such things even exist?)
- Set it on epoxy glue.
What would be the best way to mount on such a surface?