A single start square threaded power screw supportsload of 30 kN which has outer diameter of 30 mm and a pitch of 8 mm. Maximum shear stress of 30 N/mm is induced in a screw body. Determine number of screw threads considering direct shear stress.

A single start square threaded power screw supportsload of 30 kN which

1.	A single start square threaded power screw supportsload of 30 kN which has outer diameter of 30 mm and a pitch of 8 mm. Maximum shear stress of 30 N/mm is induced in a screw body. Determine number of screw threads considering direct shear stress.
A.	3 threads
B.	2 threads
C.	4 threads
D.	None of the above
Answer» B. 2 threads

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A single start square threaded power screw supportsload of 30 kN which has outer diameter of 30 mm and a pitch of 8 mm. Maximum shear stress of 30 N/mm is induced in a screw body. Determine number of screw threads considering direct shear stress.

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