Abstract: A stud assembly, for securing a nonstructural decorative panel to the interior of an aircraft, includes a threaded shank fixed to one side of a flat base, the peripheral area of the opposite side of the base being joined to the peripheral area of a flat disc, the opposite side of the flat disc having an adhesive applied thereto, so that, when a nut is tightened on the shank to its proper torque level, the tensile force in the shank allows a dimpling effect in the flat base but not in the flat disc or the panel.

Abstract: A stud assembly, for securing a nonstructural decorative panel to the interior of an aircraft, includes a threaded shank fixed to one side a flat base, the opposite side of the base having an adhesive applied in a donut fashion, so that, when a nut is tightened on the shank to its proper torque level, the tensile force in the shank allows a dimpling effect in the base but not in the panel.

Abstract: A stud-like panel fastener with a wire-spring holdout for retaining the fastener in a retracted position on a panel. The fastener is formed with a bore extending from its leading end and a longitudinal slot at the lower portion of the fastener body in communication with the bore. A generally U-shaped wire spring member is carried within the bore with a lower protruding bearing surface on one leg of the member extending through the slot and beyond the periphery of the fastener body. When the fastener is retracted, the bearing surface of the spring member, in contact with the sidewall of the panel opening, holds the fastener against downward movement. Owing to the advantageous construction, the holdout is self-cleaning, as the sidewalls of the slot tend to wipe the bearing surface in use, and debris cannot build up behind the holdout and render it inoperative due to the large void behind the bearing surface. Also, the holdout can be quickly installed or replaced without special tools.

Abstract: A captive panel fastener assembly comprising a stud having three splines substantially along its length, a retaining ring with inwardly extending tabs slidably riding within said splines and a plug press-fitted to a bore at the forward end of the stud. After insertion of the stud through a hole in a panel, to which the stud is to be captivated, the tabs of the retaining ring are engaged with the splines and the plug is then inserted into the bore to retain the ring on the stud. The stud is thereby captivated to the panel. The manner of installing the ring permits a more rigid and closely fitting retaining ring to be used as a captivating means and thus the ring is more resistant to accidental displacement than more flexible retaining rings.