SOSS 216US19 Mortise Mount Invisible Hinge with 4 Holes, Zinc, Black E-Coated Finish, 4-5/8" Leaf Height, 1" Leaf Width, 1-7/16" Leaf Thickness, #14 x 1-1/2" Screw Size

Fully mortised into the door and frame so that hinge cannot be seen from either side when the hinge is closed For use with material 1-3/8" to 1-3/4" thick Opens 180 degrees and swings in one direction Riveted steel hinge pin is non-removable Moving pivot point eliminates any external pinch point