Box pack. Grade 3 security. Adjustable latch (AL), interchangeable for 2-3/8'' or 2-3/4'' backsets with round corner face and round deadbolt latch. Key retracts bolt from exterior, turnpiece operates from interior. Keyed different. Full lifetime mechanical warranty. 5 year finish warranty. No. 660 3: Polished brass No. 660 26D: Brushed chrome No. 660 15: Satin nickel No. 660 11P: Venetian bronze