Satin Nickel Tylo Security Set - Deadbolt Keyed One Side - with Pin & Tumbler | Kwikset
Square Contemporary Double Keyed Security Deadbolt with Adjustable Backset, Front Entry Door Lock, Double Keyed on Both Outside/Inside, Oil Rubbed Bronze Finished - Amazon.com
Door Lock,Thick Slide Barrel Door Bolt Latch Heavy Duty Gate Lock Security Guard Hardware for Bedrooms/Bathrooms/Cupboards/Pet Gate and Storage Units(3.5 * 1.1 inches) - Amazon.com
Arrow Lock E50-26D Deadbolt, Occupancy Indicator
Mul-T-Lock Interactive+ Cronus High Security Grade 2 Single Cylinder Dead- Bolt w/Thumb Turn. Commercial or Residential Metal or Wood Doors (5) Stainless Steel - Two Keyed Alike) - Amazon.com