A 3-1/2" square corner full mortise hinge built for interior doors up to 1-3/8" thick. The plain bearing design handles everyday residential use cleanly, and the beveled inside leaf pulls the door tight against the stop for a proper closed fit — no gap, no rattle.Stainless steel pins resist rust and corrosion, so the hinge stays smooth even in humid environments like bathrooms and laundry rooms. Available in 15 finishes to match your door hardware exactly.Details Size: 3-1/2 in. Type: Full mortise, plain bearing Door thickness: Up to 1-3/8 in. Stainless steel rust-proof pins Beveled inside leaf for tight door-to-stop fit Available in 15 finish options Sold individually unless otherwise noted Note: Verify door thickness and hinge size before ordering. For heavier or thicker doors, see our 4 in. and 4-1/2 in. hinge options.