The Design House 188938 10-Pack Hinge 3.5 in. in Matte Black has a square corner, for use on residential duty wooden doors. These door hinges are made of steel with a staggered hole pattern. Each hinge has 6 holes and measures 3-1/2 in. x 3-1/2 in. x 7/16 in. These hinges do not have a removable pin, and screws are included. California residentssee Prop 65 WARNINGS Ten 3.5 in. door hinges with 6 holes Square corners Mounting screws included 1-year limited warranty Features Item Weight 3.97 Mounting Type Mortise Hinge Type Standard Builders Hardware Product Type Door Hinge Hole Pattern Half Moon Material Steel Commercial/Residential Residential Hinge Feature Mounting Hardware Included Package Quantity 10 Returnable 180-Day Finish Matte Black Mounting Type2 Wall Holes 6 Pin type Removable Pin Hardware Finish Family Black Fasteners included Yes Interior/Exterior Interior Hinge Radius Square Product Height (in.) 3.5 Product Depth (in.) .09 Product Width (in.) 3.5 Manufacturer Warranty 1 year limited