Originally Posted by RFSchaller
I would not disagree with your statements, but I do think you are being overly conservative in this application.
Rich, you are right, in this particular case I have been extremely conservative, maybe too conservative. But in my defence I have had one eye on the original question and the other eye on the VansAirforce general audience, the bulk of whom do not come from a scientific background. We owe it to them to stress that changing out structural fasteners with those in any way different from that specified by the design engineer is not an option to be taken lightly by the uninitiated. At least the original poster had the common sense to ask the question and he should receive credit for that.
I have been impressed with the technical calibre of posts made by all the contributors to this thread and I'm confident the OP can now make an informed decision.