This steel mortise hinge is 3-1/2-in with a 5/8-in radius. 30 pack Matte Black interior door hinge 3-1/2-in with 5/8 in radius Removable pin, full mortise All mounting hardware is included for easy installation Beautiful finish to coordinate with your existing door hardware Hardware Finish: Matte Manufacturer Color/Finish: Matte Black Height Measurement: 3-1/2-in Hinge Thickness (Inches): 0.09 Load Capacity per Hinge (lbs.): 45 Maximum Door Thickness (Inches): 1.75 Minimum Door Thickness (Inches): 1.25 Recommended Door Thickness (Inches): 1.5 Width (Inches): 3.5 Commercial/Residential: Residential Hinge Type: Mortise Interior/Exterior: Interior Material: Steel Package Quantity: 30 Pin Type: Removable Radius: 5/8-in Screws Included: Yes Warranty: Limited lifetime CA Residents: Prop 65 Warning(s): No UNSPSC: 31162400