It depends on the builder. I was in Caroline in an Amarillo built in 2006. The eterior walls were wood studs but the interior was all metal studs. Metal studs do not hold screws very well. The wire shelf fastener is just a stubby nail that is just pushed into the plastic clip to expand the little wings. A hole is drilled in the drywall then the plastic clip is pushed in without the nail then the nail is pushed into the plastic clip to expand the wings.
|