The hinge (100) has a frame part (2) fixable on the frame and a casement part (1) fixable on the casement. A hinge bolt is fixed rotationally secured in one of the hinge parts (1) and in the area engaging in the other hinge part (2) has an axial stop face. The other hinge part (2) has an axial counter stop face and the stop and counter stop faces are arranged so that in one position of the hinge parts which corresponds to the closed casement they lock the hinge bolt in the second hinge part in the direction of the hinge axis (S). The hinge bolt has at the end of an area projecting into the other hinge part an axial projection of smaller diameter on which a radially protruding projection is formed which creates the first stop face.