NU-SET 4139-3 Fremont 3 Keyed Same Door Knob and Single Cylinder Deadbolt, Oil Bronze 3 keyed alike entry door knob and 3 single cylinder deadbolt Dead bolt has thumb turn on the inside to lock and unlock Backset: standard (adjustable 2-3/8" or 2-3/4") 2 keys per lock Door thickness: standard (1-3/8" to 1-3/4")