A multi-stage tooling pin clamp capable of holding weld nuts of different sizes includes a housing having a proximal end, a distal end, and a plurality of longitudinal stages extending between the proximal and distal ends. A plunging pin within the housing and includes a plurality of tapered surfaces configured to radially displace at least one locking ball ring assembly disposed in at least one of the plurality of longitudinal stages of the housing. An actuating mechanism is in communication with the plunging pin configured to move the plunging pin toward the distal end of the housing to displace the at least one locking ball ring assembly radially outward to hold the weld nut, and a restoring mechanism in communication with the plunging pin configured to move the plunging pin toward the proximal end of the housing to release the hold on the weld nut.

A multi-stage tooling pin clamp capable of holding weld nuts of different sizes includes a housing having a proximal end, a distal end, and a plurality of longitudinal stages extending between the proximal and distal ends. A plunging pin within the housing and includes a plurality of tapered surfaces configured to radially displace at least one locking ball ring assembly disposed in at least one of the plurality of longitudinal stages of the housing. An actuating mechanism is in communication with the plunging pin configured to move the plunging pin toward the distal end of the housing to displace the at least one locking ball ring assembly radially outward to hold the weld nut, and a restoring mechanism in communication with the plunging pin configured to move the plunging pin toward the proximal end of the housing to release the hold on the weld nut.