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.