Holding system for wall elements in the sanitary field, in particular for sanitary partitions, having at least one screw plate that is oblong in a top view and is adapted for being fixed to a holding element, to a wall, to a support leg, to a further wall element or similar, having at least one holding plate that is oblong in a top view and is adapted for being permanently mounted to a wall element (11, 12, 13, 13', 13") as well as for being rigidly connected to the screw plate, and having the following further features: i) the holding plate is equipped at least in some areas with a slot profile extending in the longitudinal direction, ii) at least one slot nut (31, 31', 31") is inserted in the slot profile, iii) the cross-sectional shapes of the slot profile and the slot nut (31, 31', 31") are formed such that the slot nut (31, 31', 31") is displaceable in the longitudinal direction of the slot profile while remaining therein and protrudes out from the slot profile, iv) the screw plate is equipped at least in some areas with a slot that is open toward the holding plate and extends in the longitudinal direction, into which open slot the part of the slot nut (31, 31', 31") protruding out from the slot profile is adapted to project, v) the part of the slot nut (31, 31', 31") that is adapted to project into the open slot is displaceable therein in the longitudinal direction of the open slot, and vi) at least one fastening means (27, 27') is provided that is adapted to connect the slot nut (31, 31', 31") to the screw plate in a stationary manner, characterized by the following features: vii)at one of its side edges (19, 20) or in the vicinity thereof, though at the side opposite the slot profile, the holding plate is equipped at least in some sections with a receiving slot of a U-shaped cross-section for a wall element (11, 12, 13, 13', 13") in such a manner that the bottom of the U-shape extends in the longitudinal direction and the opening of the U-shape is directed toward the center of the holding plate, viii) between the slot profile and that edge of its side edges (19, 20), where the receiving slot is provided, the holding plate has at least in some areas a hook profile extending in the longitudinal direction, ix)at one of its side edges (15, 16), the screw plate is equipped at least in some areas with a retaining slot of a U-shaped cross section in such a manner that the bottom of the U-shape of the retaining slot extends in the longitudinal direction and the opening of the U-shape is directed toward the center of the screw plate, and x) the holding plate is adapted to engage into the retaining slot of the screw plate by means of the hook profile. i) the holding plate is equipped at least in some areas with a slot profile extending in the longitudinal direction, ii) at least one slot nut (31, 31', 31") is inserted in the slot profile, iii) the cross-sectional shapes of the slot profile and the slot nut (31, 31', 31") are formed such that the slot nut (31, 31', 31") is displaceable in the longitudinal direction of the slot profile while remaining therein and protrudes out from the slot profile, iv) the screw plate is equipped at least in some areas with a slot that is open toward the holding plate and extends in the longitudinal direction, into which open slot the part of the slot nut (31, 31', 31") protruding out from the slot profile is adapted to project, v) the part of the slot nut (31, 31', 31") that is adapted to project into the open slot is displaceable therein in the longitudinal direction of the open slot, and vi) at least one fastening means (27, 27') is provided that is adapted to connect the slot nut (31, 31', 31") to the screw plate in a stationary manner, vii)at one of its side edges (19, 20) or in the vicinity thereof, though at the side opposite the slot profile, the holding plate is equipped at least in some sections with a receiving slot of a U-shaped cross-section for a wall element (11, 12, 13, 13', 13") in such a manner that the bottom of the U-shape extends in the longitudinal direction and the opening of the U-shape is directed toward the center of the holding plate, viii) between the slot profile and that edge of its side edges (19, 20), where the receiving slot is provided, the holding plate has at least in some areas a hook profile extending in the longitudinal direction, ix)at one of its side edges (15, 16), the screw plate is equipped at least in some areas with a retaining slot of a U-shaped cross section in such a manner that the bottom of the U-shape of the retaining slot extends in the longitudinal direction and the opening of the U-shape is directed toward the center of the screw plate, and x) the holding plate is adapted to engage into the retaining slot of the screw plate by means of the hook profile.