The most common thread type used today for nuts, bolts, and screws is the _
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Step 1: Consider the common thread systems (metric vs Unified). Show more…
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A bolt thread is designated as M 20 x 1.5 with core diameter equal to 18.16 mm. If 20 kN tensile load is applied, calculate the shear stress across the thread considering that there are already 8 threads engaged with the nut. a. 29.21 MPa b. 45.33 MPa c. 26.53 MPa d. 7.96 MPa
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A single threaded trapezoidal metric thread has a pitch of 4 mm, and a mean diameter of 18 mm. It is used as a translation screw in conjunction with a collar having an outside diameter of 37 mm and an inside diameter of 27 mm. Find the required torque in N-m to raise a load of 400 kg if the coefficient of friction is 0.3 for both the thread and collar.
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