Interesting drywall anchoring problem
We have a room that is sharing a wall with the garage. When attempting to hang a coat rack in drywall, I was able to get the first fastener in no problem. On the second fastener though I ran into a literal block in the form of an electrical sub panel that's on the opposite wall in the garage. I'm going to go out on a limb and think that maybe it's not a great idea to drill into an electrical sub panel that's handling roughly 60 amps.
So, I now have a hole in the drywall that's approximately 1/4 inch in diameter and is exactly the depth of the drywall and hits the metal of the panel. It's your standard garden variety breaker panel which means a steel enclosure. I am toying with the idea of embedding a super magnet into the hole and have it hanging off the back of the breaker box, but I'm not sure how much sense this makes and how big of a magnet I would need for a coat rack that could hold 4 or 5 adult sized winter jackets at the worst case. Keeping in mind I can only go as deep as the thickness of the drywall, are there any other clever solutions that would work here? Perhaps gluing something to the back of the electrical panel versus a magnet?