Baldwin 1135.030 Full Mortise 5/8-Inch Radius Corner 3-1/2-Inch x 3-1/2-Inch Hinge, Lifetime Polished Brass 5/8" radius Supplied with #10 x 1" F.H. Phillips wood screws Knuckles milled to clearance of .010" to minimize vertical wear Inside leaf beveled for tight fit Stainless steel, rust-proof pins provide durability