I am building up the courage to wall-mount our old LCD in the kitchen and have bought some Rigifix anchor bolts - probably over-kill but don't want my Pioneer meeting my tile floor at speed.
I drilled out the holes in the bracket mounting plate so it could accept bigger anchor bolts and bought 12mm X 100mm ones. They tightened up a treat in the brickwork so I'm confident mine is solid as a rock. The bolts look like they could mount a steel I beam or something similar.