The support comes with 3 pegs 10, and a whole set screws and bolts to attach all screens.
The plate thickness is thin and I can not believe he would bear 80 kg. But for 38kg no problem, especially since I added 6 screws 8, as there are 8 holes in the bracket. With 8 screws, I am alone.
There is also an error in the description: indeed, away from the wall is 2.2 cm and 4 cm not as shown in the current record.
The price offered, I see no better, especially as the integrated spirit level is very convenient.
NB: I take off a star for the thickness of the sheet and a gap too low wall that forced me to buy for cable elbows.