Insert and method for connecting an electrical connection to a wall

An insert for connecting an electrical connector to a wall, the insert comprising:

• an electrically conductive bolt comprising a head extending along a first longitudinal axis and a shaft;
• and
• a ring comprising a through-opening and extending along a second longitudinal axis, wherein the through-opening is configured to receive the bolt, wherein the ring can be deformed by movement of the head relative to the ring along the second longitudinal axis, thereby forming a projection of the ring;
• wherein the head comprises an outer contour which, at least in regions, is produced by rotation about the first longitudinal axis of a first line, wherein the first line is curved with a first radius and is spaced apart from the first longitudinal axis;
• and
• wherein the through-opening comprises an inner contour which, at least in regions, is produced by rotation about the second longitudinal axis of a second line, wherein the second line is curved with a second radius and is spaced apart from the second longitudinal axis.

A method for producing a connection of an electrical connector to a wall, the method comprising:

• providing the insert according to claim, wherein at least on of the bolt and the ring is or can be connected to the electrical connector;
• inserting the ring into a through-opening of the wall so that the shoulder of the ring contacts one side of the wall;
• inserting the shaft into the ring from a side of the ring opposite to the shoulder;
• deforming the ring by moving the head relative to the ring along the second longitudinal axis, thereby forming a projection of the ring on a side of the wall opposite to the shoulder.