Abstract: Novel fastener assemblies self-conforming to contoured surface panels being fastened to support members and minimizing radar cross-section by providing a non-reflective surface shield component over the basic fastening component or bolt. The invention provides a method for reducing the amount of microwave radiation normally reflected back to its source by aircraft panel fasteners or bolts and/or by the recessed walls of bolt access openings at contoured surface areas. The invention comprises a novel fastener assembly of a threaded shield bolt engaged within a main fastening bolt, the shield bolt having a flexible, surface-conforming head of a metal alloy having high temperature stability properties.

Abstract: A floating nut retention system includes a nut having a central aperture therein. An inner retainer plate has an opening therein, the nut being secured to the inner retainer plate with the nut aperture and the inner retainer plate opening being fixedly aligned therewith. An outer retainer member is formed of a base plate having an opening therein and having a surface adjacent a surface the inner retainer plate. The outer retainer member includes a securing mechanism for retaining the inner retainer plate adjacent to the outer retainer member. The securing mechanism enables the inner retainer plate to float with respect to the outer retainer member, while simultaneously forming a bearing surface for said inner retainer plate.