the periphery of disc like body 12 and forming an integral part thereof is an outwardly projecting lip 36 for engaging and disengaging a flange on a cabinet to perform the fastening function as fastener 10 is turned in the hole 22 as will be described below in fig2 a front elevation view of a portion of panel 20 is shown incorporating the fastener in an unlatched position wherein the portions of the fastener which are behind the panel are shown by dashed lines here the detent boss 26 is located in hole 30 and the radially extending lip 36 is located in an unlatched position behind the hole 32 in fig3 which is a front elevation view similar to that of fig2 the detent boss 26 is located in hole 32 and the lip 36 is located in a latched position behind a cabinet flange 40 this latched position may be seen more clearly with reference to fig4 when the fastener 10 is rotated ninety degrees clockwise to the latched position the lip 36 frictionally engages the flange 40 of a cabinet to capture the flange 40 between the lip 36 and the panel 20 when the fastener 10 is rotated counterclockwise.