Dynasty Hardware 4" x 4" Mortise Spring Hinge with 5/8" Radius Corners, Satin Brass - Pack Of 2 Hinges Pair of Adjustable Spring Hinges - Self Closing - Door Closing Includes Adjusting Wrench Adjustable Tension - 2 Hinges Per Pack Wood Screws Included Fits Door Thickness 1-3/4" Thick -- Hinge Thickness 2.7 mm