Defiant Stainless Steel Single Cylinder Deadbolt 32DD61 - The Home Depot
Level Lock+ Smart Lock Bluetooth Replacement Deadbolt with Apple HomeKey/App/Key Satin Nickel C-F12U - Best Buy
Premier Lock Keyed Alike Entry Door Stainless Steel Exterior Single-cylinder deadbolt Keyed Entry Door Knob Combo Pack (2-Pack) in the Door Knobs department at Lowes.com
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Deadbolt Vs. Deadlatch » Ambassador Locksmiths
Single Cylinder Deadbolt (2) Standard, Hud, or Custom Key Codes – Roper Lock