Kwikset Security 665 Deadbolt Series Satin Chrome Double Cylinder Deadbolt in the Deadbolts department at Lowes.com
New Double Sided DeadBolt Lock Entry Door Keyed Cylinder 3 Keys Stainless Steel - Walmart.com
Premier Lock Satin Bronze Double Cylinder Deadbolt in the Deadbolts department at Lowes.com
3 Pack) Keyed Alike Entry Door Knobs with Double Cylinder Deadbolt Lock Combo Set for Entrance and Front Door Lock with Polished Brass Finish,Combo Pack Door Lock with Key - Amazon.com
Double Cylinder Interlocking Deadbolt - First Watch Security
BRINKS. Double Cylinder Keyed Deadbolt Lock, Satin Nickel - Pick, Bump and Drill Resistant and Comes with an Anti-Pry Shield - Doorknobs - Amazon.com