A resistance spot rivet welding system comprising: (i) a rivet dispensing system comprising: a first rivet receiving member defining a first channel therein, the first rivet receiving member comprising a first port communicating with the first channel and configured to receive rivets, a second port communicating with the first channel and configured to dispense rivets, wherein the first channel extends between the first port and the second port and is configured to transport rivets from the first port to the second port in a series arrangement and in a preselected orientation; and a seat member communicating with the second port, wherein the seat member comprises a first jaw, a second jaw and a block structured to receive a rivet from the second port and maintain said rivet in a preselected position and orientation, and wherein the seat member is configured to selectively engage with a rivet holder of the resistance spot rivet welding system and introduce a single rivet to the rivet holder at one time; an actuation member configured to move a rivet located within the seat member to a secondary position located above the seat member; and (ii) the rivet holder comprising a collet assembly, the collet assembly comprising an actuator and a collet connected to the actuator, the collet assembly being adapted to be installed on an external electrode holder, the collet being moveable by the actuator from an advanced position, in which the collet is adapted to grip a rivet, and a retracted position, in which at least a portion of the collet is located within the actuator such that engagement of the rivet with an electrode attached to an external electrode holder is enabled, and in which the collet is adapted to release the rivet. (i) a rivet dispensing system comprising: a first rivet receiving member defining a first channel therein, the first rivet receiving member comprising a first port communicating with the first channel and configured to receive rivets, a second port communicating with the first channel and configured to dispense rivets, wherein the first channel extends between the first port and the second port and is configured to transport rivets from the first port to the second port in a series arrangement and in a preselected orientation; and a seat member communicating with the second port, wherein the seat member comprises a first jaw, a second jaw and a block structured to receive a rivet from the second port and maintain said rivet in a preselected position and orientation, and wherein the seat member is configured to selectively engage with a rivet holder of the resistance spot rivet welding system and introduce a single rivet to the rivet holder at one time; an actuation member configured to move a rivet located within the seat member to a secondary position located above the seat member; and a first rivet receiving member defining a first channel therein, the first rivet receiving member comprising a first port communicating with the first channel and configured to receive rivets, a second port communicating with the first channel and configured to dispense rivets, wherein the first channel extends between the first port and the second port and is configured to transport rivets from the first port to the second port in a series arrangement and in a preselected orientation; and a first port communicating with the first channel and configured to receive rivets, a second port communicating with the first channel and configured to dispense rivets, wherein the first channel extends between the first port and the second port and is configured to transport rivets from the first port to the second port in a series arrangement and in a preselected orientation; and a seat member communicating with the second port, wherein the seat member comprises a first jaw, a second jaw and a block structured to receive a rivet from the second port and maintain said rivet in a preselected position and orientation, and wherein the seat member is configured to selectively engage with a rivet holder of the resistance spot rivet welding system and introduce a single rivet to the rivet holder at one time; an actuation member configured to move a rivet located within the seat member to a secondary position located above the seat member; and (ii) the rivet holder comprising a collet assembly, the collet assembly comprising an actuator and a collet connected to the actuator, the collet assembly being adapted to be installed on an external electrode holder, the collet being moveable by the actuator from an advanced position, in which the collet is adapted to grip a rivet, and a retracted position, in which at least a portion of the collet is located within the actuator such that engagement of the rivet with an electrode attached to an external electrode holder is enabled, and in which the collet is adapted to release the rivet.