Signature Series satin nickel finish, uptown, round single cylinder deadbolt with SmartKey rekeying, grade 1, 6 way round corner adjustable latch fits 2-3/8" & 2-3/4" backsets, ball bearings to prevent drill out, exposed screws, keyed alike in sets of 4, lifetime mechanical warranty, lifetime finish warranty, clear pack. pair with contemporary lever halifax or milan, 50% lower profile than a standard deadbolt.