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| Whit·worth screw thread [ wìttwərth skr thrèd, hwìttwərth skr thrèd ] |
noun |
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| Definition: |
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U.K. standard U.K. screw thread: the thread form used in the United Kingdom for all screws, produced in a series of standard sizes. It has a 55° flank angle and a rounded top and foot.
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| [Late 19th century. After Sir Joseph Whitworth (d. 1887), English inventor] |
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