Ball pin

A coupling pin with a coupling head and a thread shaft, in which:

• a. the thread shaft comprises a thread in a longitudinal portion of the thread shaft which extends parallel to a central longitudinal axis of the thread shaft,
• b. a thread inhibition is provided within the longitudinal portion of the thread, wherein a frictional connection between the thread of the thread shaft and a counter thread engaging therein and being present at a radially inner wall of a thread opening is increasable by means of the thread inhibition, and
• c. a disc-shaped radial support structure is provided between the coupling head and the longitudinal portion of the thread, wherein a radial extension of the support structure is adaptable to a diameter of the thread opening so that the coupling pin is supportable against a lateral load with respect to the central longitudinal axis of the coupling pin within the thread opening, wherein
• d. the disc-shaped radial support structure is formed star-shaped or flower-shaped such that radially projecting sections and radially recessed sections are present which are arranged in a circumferentially evenly distributed manner and a radial end portion of the disc-shaped support structure is regularly circumferentially interrupted or comprises in the circumferential direction tapered portions regularly spaced apart from each other, which allows a compressing deformation of the radial end portion.