To provide a bolt element comprising a shaft part and a spherical head, and a component assembly.

The bolt element (10) has the shaft part (12) which is designed at a first end (14) for a rivet connection (16) to a panel element (18), in particular to a sheet metal part, the shaft part (12) has a spherical formation (22) at its other end (20), and the ball diameter (D) of the spherical formation is larger than the diameter (d) of the shaft part (12). This diameter is constant over overall length from the spherical formation (22) to the first end (14). The first end (14) of the shaft part (12) is hollow and the hollow domain has enough length to be provided in the hollow domain with a material for penetrating thickness of the part, forming a rivet bead on a side far from the spherical formation of the part, and forming an annular folded-back part on a side near the spherical formation of the part.