The Collaborative International Dictionary
machine screw
machine screw \machine screw\ 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.
Wiktionary
machine screw
n. A screw designed for metal or a similar material, usually with no point and a relatively fine thread, intended for prepared, threaded holes.
WordNet
machine screw
n. a screw used either with a nut or with a tapped hole; slotted head can be driven by a screwdriver
Usage examples of "machine screw".
An old-fashioned, slot-headed machine screw, its threads brown with rust and its head clotted with dull black latex paint.
An oldfashioned, slotheaded machine screw, its threads brown with rust and its head clotted with dull black latex paint.