Optimal for convenient one-person assembly of wall enclosures, even in tight spaces. Direct screwing from the back with a self-forming screw into the enclosure's passage. Easy hanging of the wall mount on a pre-installed screw in the wall. Various mounting positions allow the wall attachment to be optimally adjusted to local conditions. Alternatively, the holder can also be secured from the inside with a screw and nut instead of the self-forming screw. An additional option for fastening with a nut is available for dynamic applications.