A stud-mount insert configured to be releasably retained by a mounting-tab of a wire-tray assembly. The stud-mount insert includes a flange and a body configured to rotate about a longitudinal-axis of a mounting-stud. The flange is configured to overlay an aperture defined by the mounting-tab such that the mounting-stud extends through the aperture into the body. The flange is further configured to engage a top-surface of the mounting-tab proximate a perimeter of the aperture.