Kwikset 660M3 Signature Single Cylinder Dead Bolt, Alike, K6 Key, Heavy Gauge Steel - Bright Brass

Operated by thumbturn inside, key outside. Security deadbolts feature full 1" solid core throwbolt, all metal mechanisms, anti-pry shield and pick resistant 5-pin system. DOOR PREP: 2-1/8" Crossbore; 1" Edge Bore; 1" x 2-1/4" Latch Face. 2-3/8" backset latch with no faceplate. DOOR THICKNESS: 1-3/8" to 1-3/4". CYLINDER: 5-pin. STRIKES: 1" x 2-1/4". BOLT: 1" throw. HANDING: Reversible for right or left handed doors. ANSI/BHMA: Grade 3.