4 x 4-1/4 x 5/8 Radius x Square Hinge; Non Removable Pin; Satin Nickel Finish Deltana inventories the largest selection of architectural and door hardware in over nine fine finishes made from solid brass, zinc, aluminum, steel and stainless steel. 4 x 4-1/4 x 5/8 Radius x Square Hinge; Non Removable Pin; Satin Nickel Finish.