Fastening element for attaching to a wall

A fastening element for attaching to a wall, comprising:

• a holder element configured to hold an object;
• a contact element having an adhesive surface and a rear side, the holder element projecting from the rear side of the contact element, the adhesive surface configured to form a space between the adhesive surface and the wall, the space extending to a peripheral edge of the contact element so as to form an opening at the peripheral edge;
• a filling passage leading from the rear side of the contact element to an outlet opening in the adhesive surface of the contact element, the outlet opening configured to open into the space between the adhesive surface and the wall and via which a flowable adhesive agent is capable of being brought between the adhesive surface and the wall;
• and
• a plurality of positioning elements surrounding the outlet opening in the adhesive surface and enabling the contact element to be positioned at the wall, the plurality of positioning elements being configured to bring about a pre-fastening of the contact element at the wall before a final attachment at a desired position,
• each of the positioning elements having a width which is variable in dependence on a spacing from the outlet opening;
• the width of each of the positioning elements resulting from an extent parallel to the adhesive surface and perpendicular to a direction of flow from the outlet opening through a center of area of the positioning element;
• the width of each of the positioning elements reducing at least sectionally as the spacing from the outlet opening increases, and
• the width of each of the positioning elements being minimal at a maximum spacing from the outlet opening.