Features: Includes two hinges (2) in each order Tested for residential and commercial strength application Packaged with 12 wood screws for simple out of the box installation Constructed with 6 screw holes in an arc arrangement for maximum mounting strength Product Technologies: Double Action Spring Hinge: Double action spring hinges allow for your door to swing either direction. The spring action will make sure your door always returns to a closed position. These hinges are ideal for locations where space is limited and large door closers are impractical. Material Type: Steel is cheap strong and durable making it a favorite for hinges of all types despite it being slightly more prone to rusting than solid brass or stainless steel. Mortise Hinges: Mortise door hinges mount flush with the surface of your door providing maximum strength with the least interference with door functionality. It is recommended that three hinges be used on doors up to and including 7-1/2 feet with one additional hinge for each additional 2-1/2 feet. Be sure to check your current hinges before making a purchase. Specifications: Height: 3.75 Width: 5.7813 Material: Steel Mounting Type: Mortise Gauge: 1.0313 Number of Screw Holes: 3.