MECANIQUE DE FIXATION DU TYPE ENCASTRE POUR LE DOUBLE ANCRAGE MECANIQUEDE PANNEAUX EN SANDWICH

摘要

A fastener insert which develops clamping anchorage to a panel skin by forming a bulbed secondary head in a shell by compression resulting from drawing a nut into the shell under interfering engagement between the two, and secondary anchorage in the panel core by a plurality of petals which are expanded into the core by action of an annular head on the nut as the nut is drawn into the shell.