Abstract: The Invention relates to a locking device for an anchor rod of a wall formwork. Moreover the invention relates to an anchoring system having an anchor rod and a locking device; as well a process for mounting a wall formwork. The locking device for an anchor rod of a wall formwork comprises a thread for the insertion of one end of the anchor rod and a stop which is removable from its stop position for an anchor rod end which is screwed into the thread.