phillips
adj.adj. describing a screw with a cross-shaped hole in the top, or the special tool used to turn it. You use this when a flat screwdriver will not work.
adj. relating to a screw with a cross-shaped indentation or a screwdriver designed to fit such a screw. Often contrasted with 'slotted' or 'flat-head' fasteners.
You need a Phillips screwdriver to open the battery cover.
The furniture kit includes several Phillips screws that require a specific cross-head tool for assembly.
While flat-head screws were once the industry standard, the Phillips design became dominant in automotive manufacturing because it allows for higher torque without the tool slipping out.
From Phillip + -s.
Typically used as a modifier before a noun like 'screw', 'head', or 'screwdriver'. Always capitalized as it is a proper adjective derived from an inventor's name.