Abstract: An electric plug connector for fastening to a wall, with a plug connector housing, on which, by means of a coupling sleeve, a plugged-in counter-plug connector, in the form of a plug or a jack, is securable, and with a flange plate with a central breakthrough, for receiving and for connecting the plug connector housing to a wall, the flange plate comprising through-bore holes for fastening screws. In the electric plug connector according to the invention the flange plate is implemented as one piece and detachably connected with the plug connector. An internal usable clearance of the central breakthrough of the flange plate corresponds to an outer diameter of a coupling sleeve of the plug connector and/or to an outer diameter of the plug connector housing. This embodiment permits in the radial direction of the plug connector a form-fitting connection of the flange plate with the plug connector housing without a special shape forming of the housing being required for this purpose.