Auae From United States of America, joined Apr 2004, 296 posts, RR: 4 Reply 2, posted (9 years 3 months 3 weeks 1 day 18 hours ago) and read 998 times:
Are you trying to design a bolt or just choose a correct bolt? If it is the latter, 777...ER has it right above. Choose a tension head bolt and nut, and used the tension strength (say 95ksi) and mutiply by the diameter of the shank to figure how much load it can handle. You need to make sure that the bearing area of the bolt head is strong enough to handle the clamp up and tension force. ie, don't use a 1/2 inch bolt in .032 Al sheet!!
If you are trying to actually design a bolt, that is different story. I think I have seen something like the nut factor above, but I have also seen equations for tread angle and such. Try Liaison, they probably have it up there.
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