I am trying to mount a floating shelf. I have located two studs, 16in apart. Drilled one hole just fine, and the wall plug fit perfectly. When I drilled the other hole, my drill bit won’t go more than ~0.5in. I looked in the hole with a flashlight and it looks like metal inside? It almost looks like a metal hole. What could this be?
I need to drill about 1inch for the wall plug to fit. If the wall plug doesn’t go all the way in, would it be alright to have it half inside the wall and half protruding? Is there a way I can secure the anchor regardless? I’m not crazy about having to remove the first successful plug and fill in the hole and start again.