NATIONAL N184-572 BRASS SPRING 4" FRAME LEAF REMOVEABLE PIN DOOR HINGE 7159783
Suitable for:Hinge Cutout and Fire Doors Up to 3 ft x 7 ft. Door Leaf Height:4 in. Mounting Type:Wall. Use anti-friction hinges with spring hinges for best spring performance. NATIONAL HARDWARE. Pin Type:Removable.