Abstract: A storage container assembly for connecting to a frame of a vehicle has a mounting bracket defining at least one aperture adapted to receive at least one first anchor of the vehicle therein, a storage container mounted to the mounting bracket and having a cover, the cover having an open position providing access to an interior of the storage container and a closed position preventing access to the interior of the storage container, a sliding member translatable between a retracted position and an extended position, the sliding member being adapted to engage a second anchor of the vehicle, and an actuator for translating the sliding member from the retracted position to the extended position. The actuator is disposed at least in part in the interior of the storage container and is accessible when the cover is in the open position. A vehicle having the assembly is also disclosed.