Abstract: In order to improve an insert for an opening in a wall area of an appliance comprising a housing socket, an assembly device provided on the housing socket, with an assembly section which can be guided through the opening in the wall area and has snap elements which engage behind an edge of the opening as well as with a pressure ring which is arranged on the housing socket at a distance from the snap elements and can be adjusted in the direction of the snap elements by means of an advancing guide as a result of a rotary movement about the central axis, in such a manner that a secure assembly of the housing socket is possible, it is suggested that the pressure ring be rotatable in a first direction of rotation in order to secure the housing socket and that the housing socket be adapted to be fixed against any co-rotation in the first direction of rotation by means of a holding section element.

Abstract: In order to improve an insert for an opening in a wall area of an appliance comprising a housing socket, an assembly device provided on the housing socket, with an assembly section which can be guided through the opening in the wall area and has snap elements which engage behind an edge of the opening as well as with a pressure ring which is arranged on the housing socket at a distance from the snap elements and can be adjusted in the direction of the snap elements by means of an advancing guide as a result of a rotary movement about the central axis, in such a manner that a secure assembly of the housing socket is possible, it is suggested that the pressure ring be rotatable in a first direction of rotation in order to secure the housing socket and that the housing socket be adapted to be fixed against any co-rotation in the first direction of rotation by means of a holding section element.

Abstract: Substrates for lithographic printing plate precursors and lithographic printing plate precursors are disclosed. The substrates comprise an aluminum or aluminum alloy support and the a layer of interlayer material on the support. The interlayer material is a co-polymer that comprise (1) acid groups and/or phosphonic acid groups, and (2) silyl groups substituted with three alkoxy and/or phenoxy groups. The lithographic printing plate precursors additionally comprise an imageable layer over the interlayer.