Originally Posted by
nonsense
In a clamped joint with high tensile bolts, the bolts are not (supposed to be) subjected to shear loads, which are carried by friction between the surfaces which are clamped together by the bolts. Holes have clearance and individual bolts are not subjected to load in sequence, failing before the next bolt takes load.
That's correct.
Maybe the reason why those cracks are taken so seriously : the joints have slipped.