Abstract: A new Screw & Driver System for providing a way for releasably securing a driver to the head of a screw such that the driver cannot be lifted straight up and out of the screw. The inventive device includes a screw and a driver therefore. The screw has a head with an hourglass-shaped driver receiving cavity. The hourglass-shaped driver receiving cavity includes a middle section and a pair of opposed wedge-shaped sections extending from the middle section. The pair of opposed wedge-shaped sections have undercut sidewalls. The driver includes a tool element having an hourglass-shaped end wherein the hourglass-shaped end of the tool element has shoulder surfaces which cooperably engage and lockingly mate with the undercut sidewalls of the pair of opposed wedge-shaped sections when the driver and the screw are in working engagement.