I second the practice of carrying nails. I've carried some 3 1/2" 16d common nails (about 12) in my vehicle kit for some time now. This is apart from all the tools and etc. that's in the tool box of my truck. Recently I was in a situation where I wasn't as prepared as I should have been, (shame on me) but having my PSK and my vehicle kit with me I was able to use the nails to speed up construction of a lean to.

I used the back of my Estwing hatchet for the entire constructon. Just remember to take them out when you leave.

Does anyone else have other survival related uses for nails? I would be interested in hearing them.

--Luke