Got this at a yard sale in a bin with mostly random fasteners. Its about 3" long. It is very similar to a standard framing nail in diameter, if not slightly less. It has a tip like a nail but a dipped-looking rubberized coating.
Any ideas what this could be for? Someone suggested a small awl but given the very small size of the "grip" (if that's what it is) that seems unlikely.
I am in the USA.