Abstract: A vehicle steering linkage member (40) comprises a socket (42), and a stud (10) having a ball end portion (48) received in the socket and supported for pivotal movement relative to the socket. The stud (10) has a longitudinal axis (52), with a shank portion (50) projecting from the socket (42) and centered on the axis. The shank portion (50) of the ball stud (10) includes a predetermined weakened portion (70). The predetermined weakened portion (70) buckles under a predetermined amount of force. The predetermined weakened portion (70) may have a cross-sectional configuration not centered on the axis (52).