Kwikset 660-514S.DS Single Cylinder Deadbolt with SmartKey Matte Black

Part Nr: 660-5SV1




Adjustable 2-3/8 or 2-3/4 Inches




2-1/8 Inches



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Product Summary

The largest-selling deadbolt in America, the 660 series deadbolt provides tough, effective protection at an affordable price.

Single Cylinder Deadbolt for 2-1/8” Bore Hole with Smart Key Kwikset is America’s #1 selling lock. This Kwikset 660 SMT single cylinder deadbolt is intended for doors with a 2-1/8”" bore hole. This Kwikset deadbolt features a 1” bolt and meets ANSI Grade 3 requirements. Please call (866) 259-8901 if you have any question or would prefer to order by phone. We are here to help!


  • Features adjustable latch & deadbolt to fit all standard door preparations
  • ANSI/BHMA Grade 3 Security
  • Add to a keyed knob or lever for additional security
  • Lifetime mechanical and finish warranty
  • SmartKey® Re-key Technology


  • Door Prep: Cross Bore 2-1/8", Edge Bore 1"
  • Backset: Adjustable to 2-3/8" or 2-3/4"
  • Door Thickness: 1-3/8" - 1-3/4" (Kit Available for 2-1/4" Thick)

Product Identifiers

00883351673402 , 660-5S, 6605smt

Technical Documents

Instructional Videos

How to Re-Key a SmartKey Security Lock
How to Re-Key a SmartKey Security Lock

Questions & Answers (3)

Question: what is latch type referring to?

Asked by on September 3, 2020

Answer: Click the "?" to the right of latch type and you will see a visual and written explanation.

Answer provided by Michael on September 3, 2020

Question: does this deadbolt lock on the inside?

Asked by Grace Czech on May 1, 2020

Answer: Grace, Single Cylinder Deadbolt: A Deadbolt that locks by key on the outside and a turn piece on the inside of the door.

Answer provided by Michael on May 1, 2020

Question: I just wanted to make sure that this deadbolt, listed on your site as 660-5S, is the kind featuring the Smartlock technology.

Asked by Rich on December 30, 2016

Answer: Yes, this deadbolt is sent with the SmartKey feature.

Answer provided by Marc on January 3, 2017

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Kwikset 660 SMT Single Cylinder Deadbolt with SmartKey
Kwikset 660 SMT Single Cylinder Deadbolt with SmartKey
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