This attractive Colonial style knob's traditional design makes a simple yet elegant statement in any home. Features adjustable latch to fit all standard door preparations. ANSI/BHMA Grade 3 Security. Exposed screws on the interior knob. Featuring SmartKey Security (tm), which protects against advanced break-in techniques and allows you to re-key your keyway. SmartKey cylinders feature a stainless steel side locking bar, racks and pins for increased strength and security. Patented side locking bar technology offers improved security by protecting against lock bumping, an attack technique used to defeat conventional pin & tumbler locks. Lifetime mechanical and finish warranty.