The assembly was also without any problems (the dowels are like most any products dowels scrap, I TOX dowel used which hold good even in ancient walls), except for the fact that the plate did not fit in my Dell U2410 I had with some shims that I put, help me.
Thereby the enclosed screws were too short.
However, this is not the fault of the wall bracket but is on Dell monitor, so there is of me still 5 out of 5 stars.