I'm going to install some three-phase CEE/Schuko outlets in the garage and bought screw anchors from Biltema, M4x41 mm screws, with anchors for single gypsum board.
It feels like the dimensions are completely wrong and that they fit better to a 6mm wall than 13mm single gypsum board?
I thought it was supposed to expand INSIDE the wall, like in the picture, not expand IN THE MIDDLE OF THE GYPSUM?
That is, there should be about 10 mm between the expanded anchor and the head of the anchor.
The piece of wood it's in is about 3 mm.
I also bought ones like this, maybe I should use them instead?
I want the 3-phase outlet to stay in the wall.
Yes, I bought the wrong one.
Should have gotten this one instead!
Found it in the wall at a place, it seems fantastic!
Doesn't seem so easy to get hold of if you dislike paying 14 kr each.