Definitions
from The Century Dictionary.
- Having a thread with a rectangular section instead of the more usual triangular or sharp thread: said of a screw. The helical projection is formed by revolving a rectangle or square around a cylinder, and causing it to advance in one complete revolution a distance equal to the pitch parallel to the axis.
Etymologies
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Examples
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As the curves _f_ above the line are the same as _f_ below the line, the template for _f_ need not be made to extend the whole distance across, but one-half only; as is shown by the dotted curve _g_, in the construction for finding the curve for square-threaded nuts in Figure 212.
Mechanical Drawing Self-Taught Joshua Rose
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In the case of square-threaded screws being required, a square-pointed tool was employed in place of the V or angle-threaded tool.
James Nasmyth: Engineer, An Autobiography. Nasmyth, James 1885
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a square-threaded worm, the length of which and the distance which it enters the barrel of the baffler determining the amount of flow.
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