Lots of Tapcon haters in this thread. I'm in Florida where all my customers homes are block/stucco or poured concrete. I exclusively use Tapcon concrete anchors. On inside walls we use the 3 1/4" straight through the drywall and on outside (lanai) installations we use 1 3/4". These things are way stronger than structural screws in a wood stud or snaptoggles in drywall. I'm 180lbs and I do pull-ups on these wall mount brackets before hanging the display. There isn't anything easier or stronger out there. Tapcons for the win....