Lock for assembly in an opening in a thin wall

Closure (10) for mounting in an opening (12) in a thin wall (14) such as a sheet metal cabinet door, a sheet metal cabinet flap, a sheet metal cabinet housing wall or the like with an elongated, substantially cup-shaped housing (16) whose edge passes into a flange (18) and which has, at one end (20), a bearing support (22) for an actuation lever (24) and, at its other end (26), a lock device (28) for the actuation lever (24) in its position in which it is swiveled into the housing (16), and a fastening device (36) which clamps the thin wall (14) between itself and the flange (18), characterized in that the housing (16) has a partially spherical bearing surface (76) with a cylindrical bore hole (78) proceeding from it, wherein a partial ball (80) with a first bearing (82) for a closure drive shaft (84) extending through the cylindrical bore hole (78) and with a second bearing (86) for the actuation lever (24) is arranged in the cylindrical bore hole (78), wherein the two bearings (82, 86) enable a rotation of the partial ball (80) in relation to the housing (16) and a swiveling of the actuation lever (24) in relation to the partial ball (80) around an axis vertical to the closure drive shaft (84) and to the extension of the lever (92).