Clamping, sealing, Monobolt rivets.

[Rickf1985]

Don't even know what I was looking for at the time but I ran across these and though they would be great for some of the problems we have on motor homes. Also the T locks.
Take a look through the fasteners on this site.

http://www.stanleyengineeredfastening.com/brands/avdel/products/breakstem-fasteners/monobolt

http://www.stanleyengineeredfastening.com/sites/www.emhartamericas.com/files/downloads/POP_Avdel_Selection_Guide_Breakstem_Systems_EN_NA_1.pdf

http://www.stanleyengineeredfastening.com/brands/avdel/products/breakstem-fasteners

What made me think of this was a members post from a while ago where he fastened his awning rail with rivets, these Monobolts look like just the ting for that.

[TerryH]

Reminds me of what we used to refer to as 'Automotive Rivets'. Amazing holding power, and the rivet gun looked similar to a Bolt Cutter.
As an aside, based on engineering, a rivet has far more lateral holding power than a screw.

[Tater]

Thanks Rick for the links it was me who fastened the awning with rivets. Looks like some great options for fasteners.

[Rickf1985]

I can always remember the posts but can never remember who it was that posted it. Seems I had reservations on whether the rivets would hold based on the fact there is nothing behind there but foam and usually rotted wood and a very thin layer of fiberglass. These items seem well suited for that, the one splays out to hold in soft materials but I don't see where it seals. The other one says it seals but it seems it needs a solid surface at the back.