Abstract: A fastening device for axially fastening a rotatably mounted threaded pin to a closing element, in particular a door, having a fastening element, which can be screwed onto the threaded pin, and having a backward-rotation prevention means for securing the screwed-on fastening element, wherein the backward-rotation prevention means has a sealing region for sealing the threaded pin with respect to the closing element. The disclosure also describes a closure actuator and a closing element incorporating the fastening device.

Abstract: A casement lock for locking a door, the casement lock having a casement lock housing, an actuation element rotatably mounted on the casement lock housing,. and a locking element which is coupled with the actuation element and can be translationally moved in a first angular range of the actuation element and rotationally moved in a second angular range of the actuation element, the actuation element being axially secured by securing means in the first angular range and being axially released by the securing means in the second angular range.

Abstract: A fastening device for axially fastening a rotatably mounted threaded pin to a closing element, in particular a door, having a fastening element, which can be screwed onto the threaded pin, and having a backward-rotation prevention means for securing the screwed-on fastening element, wherein the backward-rotation prevention means has a sealing region for sealing the threaded pin with respect to the closing element. The disclosure also describes a closure actuator and a closing element incorporating the fastening device.

Abstract: An actuating unit (1) for a closure system includes an actuating element (4) positionable on a door front (2) of a door (16); a shaft (5) configured to be passed through the door (16) and connected to the actuating element (4); a escutcheon element (6) for attachment to the shaft (5) over a free end (7) of the shaft (5) until the escutcheon element (6) bears against a door rear (3); and a securing element (8) for attachment to the shaft (5) over the free end (7). The securing element (8) prevents the escutcheon element (6) from moving back towards the free end (7) of the shaft (5). The securing element (8) is fastened to the escutcheon element (6) so that the escutcheon element (6) and the securing element (8) are attachable to the shaft (5) together.