3.5-Inch Rounded-Corner Door Hinge Collection

A 3.5-inch door hinge with 5/8-inch rounded corners replaces matching full-mortise hardware on compatible interior doors, cabinets, wooden boxes, shutters, shed windows, and other suitable panels. The detailed TDCHINGES set contains 30 matte-black rounded iron hinges plus 180 screws for a consistent multi-door installation.

Each detailed hinge measures 3.5 by 3.5 inches, has six mounting holes, uses a removable riveted pin, and rotates through a stated 270 degrees where door geometry allows. Plain-bearing construction provides smooth routine movement, while the matte coating improves water and rust resistance. This listing combines a very large range of finishes, corner styles, plain-bearing and ball-bearing designs, squeak-related option labels, and pack quantities from one to 108. These configurations are not interchangeable, so match the exact SKU to the existing hinge dimensions, radius, hole pattern, bearing type, finish, and required count. For the detailed 30-pack, verify the supplied screw length and substrate, support the door during replacement, align hinge leaves without binding, and test the full swing before tightening every fastener.