Quote:
Originally Posted by bwestfall
What about the oops rivet makes them pull out over time? Does the smaller machined head work it's way loose because of the larger diameter shank? I have not heard this before.
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A -3 oops rivet has about 30% less bearing area than a standard -3. Not only that, but the larger shank means that the tearout cylinder, the surface area that needs to shear in order to pop the head off, is 16% smaller. It's not like they're only half strength or anything drastic like that, but simple math shows that they are probably substantially weaker than their honest brethren.
Vans designs are, by and large, relatively conservative with healthy margins. But Van himself is known to defend those margins as very necessary hedges against the unknown and unknowable. So I wouldn't mind using an oops rivet every 100 or so holes, maybe one in ten where it isn't critical, but I sure wouldn't recommend putting more than two or three in a row.
Thanks, Bob K.
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