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Denoting a standard series of screw threads in imperial sizes.‘They were also less prone to misalignment or cross threading than either the traditional design or even the Whitworth thread.’
- ‘I have an old machine which has Whitworth screws on so to find out which they were I got a Whitworth thread gauge from my local D.I.Y. shop.’
Late 19th century from the name of Sir Joseph Whitworth (1803–87), English engineer.
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