A shaft-pushed fastenable suture configured for suturing a first tissue with a second tissue and/or for ligation of blood vessels and/or hollow structured organs. The fastenable suture characterized by an elongated flexible cord with one or more teeth, protruding from same. The fastenable suture further comprises a male-head at the distal end and an accepting female-head at the proximal end. The male-head is in connection with an anchor. The anchor configured to be temporarily accommodated by a distal end of a pushing-shaft. The female-head comprises a suture accepting-channel and a neighboring pushing-shaft accepting-channel. At least one of the two accepting-channels comprising one or more flexible pawls for both allowing, by means of the teeth, a continuous linear forward motion of the male-head and the cord within the accepting-channel in only one direction, while preventing motion of the male-head and cord in a backward direction and allowing only the pushing-shaft a reversible reciprocal motion.