A hitch-mounted load carrier includes a connecting member configured to be inserted into a hitch receiver and a locking mechanism coupled to the connecting member and configured to secure the connecting member inside the hitch receiver. The locking mechanism includes a first actuator disposed in an interior of the connecting member, a second actuator opposite the first actuator disposed in the interior of the connecting member and coupled to the first actuator by a shaft, and a first wedge disposed at least partially in the interior of the connecting member. A first surface of the first wedge contacts the first actuator and a second surface of the first wedge contacts the second actuator. The first and second actuators are configured to radially translate the first wedge.