Phillips: The Phillips driving head is perhaps ... sink in further and hold/tighter and harder. Slotted Hex: The slotted hex screw is a hybrid of a screw and bold, making it useful for heavy ...

Where possible, replace slotted screws with Phillips or Torx screws for applications that require high-torque fasteners. Best for: General home maintenance and repair, DIY projects, construction ...

had introduced the Phillips drive for screws. This also self-centered and was more amenable to automated methods compared to a slotted drive. Too much torque could cam out the head, though ...