HC-3A7-9N.. Euro Concealed Cup Hinge Half Overlay Mini Hinge. Sold by the Each. All Steel Self Closing, Half Overlay Mini Hinge does the job of Big Hinges. A Proven workhorse on millions of doors in the U.S. Italy, Germany & England, this is small enough for 5/8″ doors and rugged enough for 3/4″ doors in heavy use areas. Six-Way Adjustable. Depth of cup 11.5mm. (26mm diameter) Application: Screw-on with wood screws, drive-in with 10mm bushings or Euro-screws for 5mm holes on 32mm systems. Comes with Mounting Plate.