I can't quite figure out what type of screw to use to mount this powerboard. The mounting holes are oddly shaped - in that the internal shape matches the external shape, so there's actually nowhere for a screw head to lock in to. Every screw head I try is easily knocked out.
Is there a special type of screw / way to mount this?
I am trying to avoid adhesive-type mountings, as this particular power board hosts a cord that is frequently plugged & unplugged, which has led to previous adhesive mounts pulling the paint off the wall.
If needed - the powerboard is a Crest PWA06021.


