Kwikset 740CA S Keyed Entry Polished Brass Circa Knobset Single Cylinder Circa Keyed Entry Single Cylinder Door Knobset with SmartKey by KwiksetThe Circa is distinctive in its beauty and grace It lends the perfect finish to almost any door This keyed entry knob equipped with the new SmartKey technology is the perfect choice for keeping your home or business safe and secure Key it Yourself: Lock is rekeyable by using the included learn tool in less than 30 seconds without removing the lock from the door SmartKey cylinders also feature a stainless steel side locking bar racks and pins for increased strength and security Features a fully adjustable latch to fit all standard door preparationsANSI BHMA Grade 2 SecurityIncludes Standard Round Corner Strike Plate Part Number 83796 (Strike Plate is on Door Jamb) For Square Corner Strike Plate See Product: Kwikset 83437 For a T Strike Plate See: Kwikset 83028 Bump guard: Patented side locking bar technology replaces a traditions pin and tumbler design to protect against lock bumping Drill Resistance: Cylinder uses two steel balls inserted into the front of the key face to resist attack from drilling Lifetime mechanical and finish warrantySmart Key Cylinders are 5 pin and will not key alike to 6 pin cylinders Some images may be shown without SmartKey cylinderManufacturer Model Numbers:Antique Brass: 97402 598