The square-threaded bolt is used to join two plates together. If the bolt has a mean diameter
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The square-threaded bolt is used to join two plates together. If the bolt has a mean diameter of d = 20 mm and a lead of l = 3 mm. determine the smallest torque M required to loosen the bolt if the tension in the bolt is T = 40 kN. The coefficient of static friction between the threads and the bolt is μs = 0.15.
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d ந. > M
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