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unified screw thread

   Also found in: Encyclopedia 0.03 sec.
unified screw thread
n
(Engineering / General Engineering) a screw thread system introduced for defence equipment (1939-44), in which the thread form and pitch were a compromise between British Standard Whitworth and American Standard Sellers: adopted by the International Standards Organization


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2 Unified Thread Form The Unified screw thread has a 60-degree thread angle with a rounded root and a crest that is flat or rounded.
 
 
 
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