4" x 4" square knuckle hinges, square knuckle in solid brass. This hinge mortises one leaf into the door edge and one into the jamb, with the door turning on the knuckle pin. For residential doors, interior or exterior, set the number of hinges by door height and weight. Match leaf size and corner shape to the frame preparation, and confirm door thickness, before ordering. Sold in pairs.
- Material: Solid brass
- Fasteners: #12 x 1-1/4"
- Leaf thickness: .129"
- Finishes: 7