Patent attributes
A ball-stud joint having a flange on a stud thereof, the flange having a sloping side for making it easy to locate centrally the stud relatively to a lower die jig. The ball stud is comprised of a ball fit for pivoting movement into a major body, a stud having a plain end adapted to be formed into a rivet head to joint the stud with any counterpart, and a flange formed integrally around the stud to provide a surface coming into abutment against the counterpart. The flange has a sloping side extending radially outwardly from a flat surface facing on to the ball to an outside periphery of the flange in such a way that the sloping side comes into engagement with a slantwise bearing area on a lower die jig when the plain end of the stud is formed into rivet head.