A closing seal and associated method include a closing body having a closing mechanism disposed therein, and receptacle retaining the closing body, and a first connecting member connected with one of the closing body and the receptacle. An insertion member is connected with the first connecting member and shaped for insertion into the closing member to retain the same in place. A second connecting member is connected with one of the closing body, the receptacle and the insertion member, and includes a through aperture through which the insertion member passes when the closing seal is closed.