Panel mounting fastener

Claim 1

A one-piece plastic rotatable fastener for mounting at least one panel in predetermined spaced relation to a support, said support carrying a male contact having a predetermined axial length in relation to one reference surface of said support, said panel including a female contact having a predetermined position relative to said panel whereby when said panel is oriented and maintained at a predetermined distance from said support said female contact will telescopically engage said male contact at a preselected optimum position, said fastener including a central axially extending body portion, flange means extending radially outwardly from predetermined spaced positions on said body portion, resilient stud means extending axially from one end of said body portion and having positive shoulder means spaced from and in opposing relatioN to one of said flange means and adapted to be snapped into said apertured support means with said shoulder means contacting said predetermined reference surface of said support means, said stud means adapted to be positively axially retained against inadvertent removal but capable of rotation within said aperture of the support means, said body portion extending axially beyond said other flange means at the end opposite said stud and carrying at least one substantially rigid wing element extending radially outwardly in overlying spaced relation to said other flange means, said wing element including a depending resilient arm the free end of which is spaced from said other flange means a distance less than the thickness of said panel, said other flange means having the surface facing said flexible arm acting as a reference plane spaced from said shoulder means said predetermined distance whereby rotation of said fastener results in said flexible arm forcing said panel into intimate engagement with said other flange means reference surface thereby insuring accurate positionment of said male contact within said female contact to obtain the predetermined optimum contact between said male and female contacts.