Patent ID: 7503739

Claim:
A draw key assembly for securing a kingpin, comprising: a cylindrical body including a mating rear end and a front end having front end threads formed thereabout; a head attached to said front end of said cylindrical body; a flared section having a mating front end, a rear end, a partially cylindrical side surface, and a substantially planar side surface; a partially threaded fastener extending from said rear end of said flared section and having a threaded side surface and an unthreaded side surface, said unthreaded side surface being substantially planar and adjacent said substantially planar side surface of said flared section; a threaded member extending from one of said mating rear end and said mating front end, another one of said mating rear end and said mating front end having a threaded bore formed therein for mating with said threaded member; a rear end nut for mating with the partially threaded fastener; and a front end nut sized to engage the front end threads.