[quote=martin_langhoff]Peel / exploding rivets just "unpeel" under pressure when pulled. Not my fave.
The folding/trifold/monel style rivets fold right against the surface, increasing the contact surface... so they work much better with carbon/fiberglass, etc. In a sense they form their own washer. For affixing things to carbon spars, where the fasteners will be pulled -- I wouldn't use peel rivets.
For the trampoline -- which I don't know your boat but seems likely that _shear_ loads on the rivets will dominate -- it's probably ok.[/quote]
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