Screw cap intended to remain attached to a container after opening the container , the cap comprising: - a cylindrical wall having a longitudinal axis , a first end closed by a bottom and a second open end , the cylindrical wall having an inner surface including a thread arranged to engage with a thread arranged on a neck of the container , the cylindrical wall being configured to be located alternatively in a closed position, wherein the cylindrical wall is screwed on the neck , and an open position, wherein the cylindrical wall is unscrewed from the neck and the neck is open, - a safety ring extending the cylindrical wall and intended to be retained at the neck by a retaining element arranged on the container , the safety ring being connected to the second end of the cylindrical wall by at least one fracturable connection , the fracturable connection being arranged to be fractured during a first unscrewing of the cylindrical wall , wherein a portion of the cylindrical wall forms a first strip extending between a first tip and a second tip parallel with the longitudinal axis , the second tip being connected to the safety ring by means of a connecting element , characterized in that the first tip is connected to the cylindrical wall by a first hinge ,the connecting element being arranged to make it possible for the displacement of the cylindrical wall along the longitudinal axis during an unscrewing of the cylindrical wall . the cap comprising: - a cylindrical wall having a longitudinal axis , a first end closed by a bottom and a second open end , the cylindrical wall having an inner surface including a thread arranged to engage with a thread arranged on a neck of the container , the cylindrical wall being configured to be located alternatively in a closed position, wherein the cylindrical wall is screwed on the neck , and an open position, wherein the cylindrical wall is unscrewed from the neck and the neck is open, - a safety ring extending the cylindrical wall and intended to be retained at the neck by a retaining element arranged on the container , the safety ring being connected to the second end of the cylindrical wall by at least one fracturable connection , the fracturable connection being arranged to be fractured during a first unscrewing of the cylindrical wall , - a cylindrical wall having a longitudinal axis , a first end closed by a bottom and a second open end , the cylindrical wall having an inner surface including a thread arranged to engage with a thread arranged on a neck of the container , the cylindrical wall being configured to be located alternatively in a closed position, wherein the cylindrical wall is screwed on the neck , and an open position, wherein the cylindrical wall is unscrewed from the neck and the neck is open, - a safety ring extending the cylindrical wall and intended to be retained at the neck by a retaining element arranged on the container , the safety ring being connected to the second end of the cylindrical wall by at least one fracturable connection , the fracturable connection being arranged to be fractured during a first unscrewing of the cylindrical wall , wherein a portion of the cylindrical wall forms a first strip extending between a first tip and a second tip parallel with the longitudinal axis , the second tip being connected to the safety ring by means of a connecting element , characterized in that the first tip is connected to the cylindrical wall by a first hinge ,the connecting element being arranged to make it possible for the displacement of the cylindrical wall along the longitudinal axis during an unscrewing of the cylindrical wall . <EOS>