American Heritage® Dictionary of the English Language, Fourth Edition
- n. A screw with a thread along the entire length of the shaft.
Century Dictionary and Cyclopedia
- n. A bolt or screw having a moderately fine machine or standard bolt-thread, a blunt end, and a fillister, flat, or button head to be set home by a screw-driver rather than a, wrench: used for holding together parts of machines or other metal-work.
- n. A screw designed for metal or a similar material, usually with no point and a relatively fine thread, intended for prepared, threaded holes.
GNU Webster's 1913
- n. a screw or bolt adapted for screwing into metal, in distinction from one which is designed especially to be screwed into wood.
- n. A type of screw used either with a nut or with a tapped hole; it has a slotted head which can be driven by a screwdriver.
- n. a screw used either with a nut or with a tapped hole; slotted head can be driven by a screwdriver
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