It's been a while, but as I remember it, yes, there is just those bolts. Just be carefull when you pull it down and make sure to unplug the wiring harnesses. You don't want to have to be searching thru them looking for th eone wire you pulled out!!
btw - if you have one bad recepticle, you have more. Once one gets loose it seems to effect the main board underneath also. That's what happened to me. If you can run with it the way it is for now, I suggest you find a replacement and just bolt it in. Even takes less time.
I found a replacement in a junk yard for $20 bucks I think it was, and you will save that much in replacement fuses from the old box anyway.
ira