What is the best, safest way to dispose of boxes of nails?

So, over the years, I’ve wound up with several boxes of nails. I think that some were left over by the contractor or carpenter from some construction project years ago, others I probably inherited from the previous owner of this property. They’re sitting in my garage, and I’d like to get rid of them. Most of the nails are in good condition (i.e., they are new and straight), but many in each box are bent. Many are very long, 3 to 4 inches long.

It doesn’t seem right just to dump them in the garbage. I don’t want some nails to accidentally fall out, wind up on the street and puncture tires. So, how do I dispose of them?