Described are track fitting assemblies having a main body, at least one pre-loaded stud assembly, and a track comprising a pair of lips. The at least one pre-loaded stud assembly includes a stud and a compressing device, wherein the stud does not contact the compressing device in a clamped position and does not contact the pair of lips in an unclamped position. As examples, track fitting assemblies also include at least one shear plunger assembly having a shear pin and a button, wherein the button extends from the main body and the shear pin is positioned within the main body in a disengaged position, and the button is positioned flush with the main body and the shear pin is extended from the main body in an engaged position.