Automatic locking mechanism and worktable

A locking mechanism is configured to automatically secure a first object to a second object when the objects are adjacent one another. The locking mechanism selectively releases the objects from one another in response to the movement of a third object. The locking mechanism includes a latch having a base, a pivoting portion attached to the base, with the pivoting portion configured to pivotally secure the latch to the first object about an axis (A). The latch also includes a securing portion attached to the base. A receiving surface is configured to contact the second object as it comes into proximity with the first object and pivot the latch about the axis (A) in a first direction. The securing portion also includes a hook configured to automatically secure the second object to the first object when the objects are adjacent to one another.