HiLift HM-LK, Hi-Lift HM-LK, High Lift, Jack Mount, Jack Lock, Hood Jack, Mount, Roll Cage, Bed Mount, Jeep Wrangler, Wrangler JK, Wrangler TJ. The Hi-Lift Jack Hood Mount Locking Knob is made specifically for use with Hi-Lift Jack Jeep Wrangler Hood Mounts, model numbers HM-800, HM-825 and HM-850.