A flanged bolt coupling consists of eight 10-mm-diameter steel bolts on a bolt circle 400 mm in diameter, and six 10-mm-diameter steel bolts on a concentric bolt circle 300 mm in diameter, as shown in Fig. 3-7. What torque can be applied without exceeding a shearing stress of 60 MPa in the bolts? - See more at: http://www.mathalino.com/reviewer/mechanics-and-strength-of-materials/solution-to-problem-328-flanged-bolt-couplings#sthash.gG459BcZ.dpuf