Driver connection

Driver connection for window and door mountings comprises a stop body, e.g. a rosette, that has a bearing bush for the neck (12) of a handle and can be mounted on a stop surface of a window frame or a door at the height of an inner gear nut or lock nut so that a square driving pin (18) sitting with one end (48) in a square hole (14) in the handle neck on insertion into the bearing bush engages in a form-locking manner with its other end (58) in a diametrically opposed recess of the nut. One end (48) of the driving pin is displaceably inserted into the handle neck square hole. The other end (58) of the driving pin has at least one notch (50), cut-out, etc. at a position (36) corresponding to the maximum depth (t) of the nut. The notch can be locked in the nut.