So for those wishing to fix their flat screen, I find this support very well because the fixing to the wall (the mounting plate is wide) Activity for fixing given the weight I opted for the installation of 2 chevron attached to chemical glue, I coated, painted and fixed support using lag screws. Perfect result. Only downside, the fournits fixing screws for the screen were too tight, I preferred to other longer screw.
Nothing to say, and considering the price compared to other provider, I have not found better at the same price