Electrical contact assembly

A method of forming an electrical contact assembly, the method comprising:

• providing an elongate stud having a coupling end and an opposing butt end, the butt end having a recess formed therein, the recess having a head portion and a shank portion defining a shoulder at a juncture therebetween, the head portion bounded by a collar and having a diameter that is larger than a diameter of the shank portion;
• providing a contact pad having a head and a shank, the head having a top surface and a bottom surface with a tapered sidewall extending therebetween, the shank extending from the bottom surface of the head and having a diameter that is smaller than a diameter of the bottom surface;
• disposing the contact pad within the recess, entirely within the elongate stud such that an entirety of the contact pad is disposed within the elongate stud with no portion of the contact pad extending outside of the elongate stud, with the bottom surface of the head disposed on the shoulder;
• and
• deforming the collar so that the collar extends over and engages the tapered sidewall of the head to retain the contact pad within the recess.