This piece is 4.5 inches long and was found in a CW camp that has been farmed for many years. It looks like a pin for attaching one part to another and has a hole at the bottom for a retainer. Any ideas what it might have come from? Thanks for looking.
Good guesses, but I failed to mention that the shaft is only 1/4" in diameter and the circle inside dia is 1". So it would be too small for pulling something with a tractor and too small for an oar lock.
I have changed my mind. I don't think it is a spring loaded latch. As I picture a spring loaded latch, it should have a small hole farther up the shaft to retain a coil spring and the bottom of the shaft would be inserted into a hole in a bracket. This one has a hole at the end of the shaft as though it is for a retaining pin.