A door lock comprising - a lock case, - a faceplate connected to the lock case, - a latch bolt spring-biased out of the lock case, - a two-part nut with spring-loaded, adjustable nut coupling and - a control latch, wherein the control latch is operatively connected to the latch bolt via a spring-loaded locking slide so that - in a first position, the latch bolt is biased out of the lock case by a first dimension and the control latch is completely extended out of the lock case, wherein the locking slide is received with its upper end in an engagement of the latch bolt and locks it and rests with its lower end on a cam of the control latch, and - in a third position the latch bolt is completely pressed against the pre-tensioning and at the same time the control latch is partially or completely pressed into the lock case, wherein the locking slide is released with its upper end from the engagement of the latch bolt and no longer locks it and rests with its lower end in the control curve of the control latch, and - in a fourth position, the latch bolt is biased by a second dimension out of the lock case and locked by a latch lock, while at the same time the control latch is partially or completely pressed into the lock case, the locking slide no longer locking the latch bolt with its upper end and resting with its lower end in the control curve of the control latch characterised in that - in a second position the latch bolt is biased out of the lock case when the control latch is partially or completely pressed into the lock case, wherein the locking slide is received with its upper end in the engagement of and locks the latch bolt and is simultaneously blocked by the pre-tensioning of the latch bolt itself, while the lower end is freely located in a control curve of the control latch. - a lock case, - a faceplate connected to the lock case, - a latch bolt spring-biased out of the lock case, - a two-part nut with spring-loaded, adjustable nut coupling and - a control latch, wherein the control latch is operatively connected to the latch bolt via a spring-loaded locking slide so that - in a first position, the latch bolt is biased out of the lock case by a first dimension and the control latch is completely extended out of the lock case, wherein the locking slide is received with its upper end in an engagement of the latch bolt and locks it and rests with its lower end on a cam of the control latch, and - in a third position the latch bolt is completely pressed against the pre-tensioning and at the same time the control latch is partially or completely pressed into the lock case, wherein the locking slide is released with its upper end from the engagement of the latch bolt and no longer locks it and rests with its lower end in the control curve of the control latch, and - in a fourth position, the latch bolt is biased by a second dimension out of the lock case and locked by a latch lock, while at the same time the control latch is partially or completely pressed into the lock case, the locking slide no longer locking the latch bolt with its upper end and resting with its lower end in the control curve of the control latch characterised in that - in a second position the latch bolt is biased out of the lock case when the control latch is partially or completely pressed into the lock case, wherein the locking slide is received with its upper end in the engagement of and locks the latch bolt and is simultaneously blocked by the pre-tensioning of the latch bolt itself, while the lower end is freely located in a control curve of the control latch.