I bought a junction box in order to splice three Romex together along the 2x4's in the ceiling of my (unfinished) basement. The box looks like this:
When I bought it, I assumed that I could just screw/nail it to the side of the joist using those holes in the back. However, I can't do that because the screws for the cable clamp stick out the back by about 3/4"!
So, what is the correct way to mount this box to a 2x4? Or did I just buy the wrong thing?