a door hinge and a method of its use is provided which is suitable for use with glass shower screen doors . the method involves cutting a pair of circular cut - outs at a side edge of the door near the top and bottom of the door respectively . after toughening of the cut - out portions of glass , a hinge in accordance with this invention is mounted in each cut - out portion . the hinges each have a first arm which has a circular door mounting portion of substantially the same diameter as the cut - outs which are located in the cut - outs . the hinges each have two clamping parts , one part is fitted to abut with one face of the door , and the other part is fitted to abut with the other face of the door . each part is fitted to immediately surround the respective cut - outs . the hinge then has screw holding means which holds the parts together and clamps the door . the second arm of the hinge can be mounted directly to a frame member , such as a jam member or to a further glass panel . in the case where mounting is to a further glass panel , the mounting can be by similar circular cut - outs , and by the second arm having a similar circular door mounting part , and clamping parts . by having circular cut - outs , it makes the cutting of the glass door less complicated than providing square shaped cut - outs used in the past .