Original Quality Replacement kingpin made by Sure-Grip U.S.A. For Sure-Grip DA-45 and SA-45 Trucks. The New "Harry Stud" hardened steel king pin with allen head for easy installation. No more struggling with 'impossible' nut and kingpin configuration that comes with the standard DA-45 trucks. With the allen head it makes the task of adjusting your DA-45's a pleasure! Priced per each which comes with the allen head kingpin, locking action nut and top nylon locking nut.