-->//(Threaded Joints) Example 7.1 -->//Refer Fig.7.13 on page 232 -->//Weight of electric motor P (kN) -->P = 10 P = 10. -->//Yield tensile strength of 30C8 Syt (N/mm2) -->Syt = 400 Syt = 400. -->//Factor of safety fs -->fs = 6 fs = 6. Standard size of the bolt is M20