machine screw

American  

noun

1. a threaded fastener, either used with a nut or driven into a tapped hole, usually having a diameter of about 1/4 inch (6.4 millimeters) or less and a slotted head for tightening by a screwdriver.

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machine screw British  

noun

1. a fastening screw with a machine-cut thread throughout the length of its shank

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Example Sentences

It is held together by means of a small machine screw and a knurled nut.

From The Boy Mechanic: Volume 1 700 Things for Boys to Do by Popular Mechanics Co.

A bolt or machine screw was threaded 151 through the nut, so that its inner end pressed against the sighting rod.

From The Scientific American Boy Or, The Camp at Willow Clump Island by Bond, A. Russell (Alexander Russell)

When a machine screw is turned around just once, it moves forward a certain distance, as a glance at Fig.

From Boys' Book of Model Boats by Yates, Raymond F. (Raymond Francis)

A machine screw is a small screw, such as in Fig.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Then we had to cook up an offset screwdriver with a ratchet that would let me reach in about a yard and still run a number 0-80 machine screw up tight.

From The Trouble with Telstar by Schoenherr, John