trekkie76,
Find your stud, and cut the hole so the side lines up. Then remove the box from the bracket. Then cut off most of the front of the bracket with snips or a saw, (band saw worrks best)leave a 1/4" of the front part. Then drill 2 holes at the corner of the bracket where it fold from the front to the side. (Easiest to do this from the back.) Then line it up in the hole, and smack that 1/4" of whats left of the front part between the rock or plaster and the stud. Put your 2 screws in the holes you made. (the ones in the side if you can reach at the angle too. ) Put the wire in the box, and box back on the bracket. Trim...
It seems like a lot to do, but once you've done it once, it's easy!
Someones gonna say, "Why don't you just use a cut in box." On some of the plaster and lath walls here there's almost a 1/2" between the lath. Or weak sheetrock. First time you plug something in, the box gets pushed though the brittle plaster or rock, or worse the box comes right out of the wall! So check the the first hole, and if the plasters is bad and crumbly, I cut the rest at the stud, and do the above. So I have a nice solid box!
Also, like mentioned above it's a code violation to put screws into a NM box not made to have them. 314.43 Or, 314.23B1 as Ryan mentioned.
These Smart Box things would probhably work well for the same, but like I said, I haven't seen them anywhere yet.
Does anyone know if they are plastic, or bakelite? If the later, I won't touch 'em. Oh, how I hate bakelite...........
