therein the flange 33 on the adjacent skin 20 or 22 and also to provide a substantial thickness of stile material projecting beyond those flanges as shown at 36 in fig2 and 3 e g a thickness of approximately 0 15 inch the hinge side stile 26 is also rabbeted along its outer side edges but these rabbets 40 are shown as only sufficiently deep to receive the thickness of the flanges 33 so that the hinge side edge of the door is essentially smooth across its width alternatively the rabbets 40 can be made of approximately the same dimensions as the rabbets 35 along the lock side stile 25 but in that case the resulting projecting portion of the stile 26 should be mortised flush with the flanges 33 to receive one leaf of each of the hinges 12 in another alternative the flanges 33 may be received in slots cut in the sides of the stiles rather than rabbets in the edges of the stiles as shown in fig2 one leaf of each hinge 12 is mounted directly on the exposed edge of the stile 26 by a plurality of conventional wood screws 44 in addition each of these hinge leaves is mechanically connected with one of the skin flanges 33 by a pair of screws 45 threaded through the flange 33 into the stile 26 as shown the screws 45 are sheet metal screws which are self tapping to provide positive connections between the hinge leaf and the flange 33 each of the metal skins 20 and 22 is also provided with a.