JOINING ELEMENT, CONNECTING STRUCTURE WITH THE JOINING ELEMENT, MANUFACTURING METHOD OF THE JOINING ELEMENT AND CORRESPONDING JOINING METHOD

摘要

The present invention relates to a joining element (1) for establishing a connection between at least two components, which has: a head (10) at a first axial end, an end region (20) at a second axial end opposite the first axial end and an intermediate end the end region and the head arranged shaft (30) which defines a longitudinal axis of the joining element between the first and the second axial end. According to the invention, at least the shaft and the end region of the joining element have a hardened edge layer, so that a material of the shaft and the end region have a lower hardness in the interior compared to an adjacent surface of the edge layer.