I have used these for quite a while and I have to say they work excellent! A recent Noreaster' did a number on my tarp around my shelter and I was able to re-secure them using Super Snaps. They hold so well that the ones I already had in service gripped so well that the tarps ripped with the Super Snaps still securely in place! American ingenuity at work here. I have ordered new tarps to replace the damaged ones but for now I can secure them again. One caveat is when the silver tarps are new it is very difficult if not impossible to use these gizmo's!
http://www.harborfreight.com/15-piece-super-snap-grommet-value-pack-93740.html
Ray
http://www.harborfreight.com/15-piece-super-snap-grommet-value-pack-93740.html
Ray