This is a rugged used heavy steel King Pin Lock. Pad lock is not included, but available at extra cost.

King pin lock help secure semi trailers when they are not in use. This is a good security measure specially if the semi trailer is dropped in an unsecured location. King pin locks can also help indicate which semi trailers are ready to be moved by removing the locks from the trailers that are ready, and keeping the locks on the trailers that are not quite ready.

You can pick this is up in Escondido and save on Shipping Charges