A locking mechanism includes a bracket configured for mounting on a wall of a securable box and receiving a lock body to selectively secure a cover to the securable box preventing access to an interior of the box. The mechanism further includes a blade that is movable relative to the bracket between a locked position and an unlocked position to secure or remove the blade and bracket to or from a securable box wall respectively. The blade and bracket can be secured to and removed from the securable box without an operator's hand extending into the interior of the box.