The prosthesis has a lug part (2) for holding a joint head, an anchoring part (3) for anchoring the prosthesis in a bone. A connecting device (4) for fixed connection of the lug part with the anchoring part is designed as a snapping device. A stud (5) is attached to the lug part, and the connecting device has a guidance, where the guidance is designed such that the stud is holdable in the guidance in a tiltable secure manner. The lug part and the stud are designed as a single piece, and the lug part and/or the stud is made of plastic, and the anchoring part is made of metal. An independent claim is also included for a method for assembling a prosthesis.
