drywall-anchorwalls
I have a holder for a handheld shower head that I would need to install on a bathroom wall. This holder came with two screws and two different kinds of plastic anchors.
The anchors look as shown here:
What I wanted to ask is, how can I determine which anchor type to use on my bathroom wall?
You don't say what size or gauge the studs are, but regardless, any reasonable stud is more than adequate for the weights involved. I'm not fully clear on what your connections really are, but in general they sound adequate. Are you sure the bulge occurred during the installation and wasn't always there? Drywall walls are rarely perfectly flat when checked with a straight edge. If the bulge were caused by the installation, it is probably the screws pulling the adjacent stud out of plumb due to some misalignment with the other studs and/or the mounted devices.
Metal studs are rather elastic, it doesn't take much side load for them to deflect a few mm. Despite my uncertainty of what you actually did, I'm fairly sure you have no structural issues and do not need to worry about anything failing.
I found this video on youtube titled: "Plastic Toggle Anchors" that shows their installation. The trick is to use your index finger to push in the toggle so that it can collapse down into a "barrel" shape for insertion into a pre-drilt hole in the dry-wall.
Here are the key shots from that video.
image #1
Best Answer
The larger ones (on the right) are for drywall as the outer layer. The smaller ones are for inserting into a ceramic tile layer bonded to either drywall or cement board (or tile on cement board on drywall).