the invention relates to a toggle-clamp for a fastener that comprises a support element (1) provided with a bearing (2), and a tensioning lever (3) that can be swiveled relative thereto. One end (31) of said lever is linked with the bearing (2) and the other end is provided with a handle (32). A tensioning element (5) is disposed on the tensioning lever (3) and can be swiveled between the bearing (2) and the handle (32). Said tensioning element detachably links a lockable element (6) disposed on the handle-side of the bearing (2) with the support element (1). The tensioning element (5) is provided with a manually actuated lever (7) on the handle side with which the tension element can be swiveled.