slotted and hex socket. Head: The top of the screw, which includes the drive. Shank: The smooth area of the fastener between the head and the thread. Screw types vary and some screws do not have a ...

The Phillips bit slot in the head is relatively shallow ... a nut driver, or a flat-tip screwdriver. The most common type of this fastener has a built-in washer formed into the head.