Very flexible, but thought only conditionally for the European market.

First of all, who looks for a bracket to which he can screw his boxing is definitely well served by the set. There are adapters for all possible configurations from 1/4 inch to M4 - M6) here. Unfortunately, the thread is out of the bracket goes out even the 1/4 inch thread. I've got just a M5 "over it cut" and then the threaded rod still reduced by 2cm to come up with the Lausprecherbox closer to the wall.
Otherwise, I have to adjust to the fact that the speaker, due at least 8 cm away from the wall by the unattached adapter.
The 10 Kg. Indication is "ambitious" consider my opinion as highly. That is and remains a plastic part. 3-4 KG are certainly not a problem.