Resistant to pick and bump security attacks. For keyed exterior doors. Exterior lever locked or unlocked by key. Unlocked by turn piece on the interior lever. Dual option latch includes 1/4" round corner and 1" circular drive-in latch, adjustable for 2-3/8" or 2-3/4" backsets. Strike: 1/4" round corner full-lip strike. Nonhanded lever allows for right handed or left handed installations. Easy-to-install 3-piece assembly. ADA compliant. Grade 2 construction. Lifetime mechanical warranty. 10 year finish warranty. Keyed alike in multiples of 4. Order full case and receive 4 keyed alike.