Mount monitor arm on aerated concrete wall?

[Amatörsnickaren]

I am going to attach a flexible arm that holds a screen weighing about 7 kg to a wall of aerated concrete, but the question is what kind of screws and possible plugs or chemical anchors to use?
I am considering first attaching the arm to a board that can then be attached to the wall with more screws at longer intervals than those directly on the arm to distribute the load...

 

[Isakare]

Lightweight concrete plug. These are plugs with heavy threads that cut into the lightweight concrete. When properly installed, they hold as if welded in place.

 

[Träkåk]

I am going to attach a flexible arm that holds a screen weighing about 7 kg to a wall made of blue concrete, but the question is what kind of screws and possible plugs or chemical anchors etc. should be used? I'm considering first attaching the arm to a board, which can then be attached to the wall with more screws spaced further apart than those directly on the arm to distribute the load...

Tried many options and found that these work best. Drill with a metal drill bit, and if it says 12mm drill, try with 11 first and see if it's possible to insert the plug. The right thickness of the screw, and it will hold well then.

 

[Träkåk]

Tried many variants and concluded that these work best. Drill with a metal drill bit and if it says 12mm drill, try with 11 first and see if you can drive in the plug. The right thickness of screw then it holds well

https://www.proffsmagasinet.se/mask...IECtax4IAlgdStked0sw6Ewt-K0tHybkaAornEALw_wcB

 

[Amatörsnickaren]

Worked like a charm - fits "rock-solid"...