a screw with a fine thread of definite pitch, such as that of a micrometer gauge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use micrometer screw in a sentence
Rotate the head of the micrometer screw until the movable line has transversed one division of the stage micrometer.The Elements of Bacteriological Technique | John William Henry Eyre
The measurement depends on the accuracy of the micrometer screw, which is cut and corrected with great care.Astronomical Instruments and Accessories | Wm. Gaertner & Co.
The top carriage can be moved by hand and accurately set by means of a micrometer screw.Astronomical Instruments and Accessories | Wm. Gaertner & Co.
The swivel C is bored out so that the axis of the micrometer screw will be parallel to the body of the holder when it is in place.Measuring Tools | Unknown
The jaw end is counterbored out with a 45-degree counterbore to form a bearing for the forward end of the micrometer screw.Measuring Tools | Unknown