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Current Finish:

158 Halifax Square Deadbolt

Model: 158 SQT 26 SMT

Function: Single Cylinder Deadbolt

The Halifax square deadbolt offers a sleek design, reflecting the sophistication and simplicity of the new modern home.
Available through Special Order at a Home Improvement Retailer or through Wholesale and Distribution Partners
 
  • Features adjustable latch & deadbolt to fit all standard door preparations
  • ANSI/BHMA Grade 2 Certified Security
  • Add to a keyed knob or lever for additional security
  • Lifetime mechanical and finish warranty
  • Featuring SmartKey® Re-key Technology with BumpGuard™ Protection
  • SmartKey cylinders feature a stainless steel side locking bar, racks and pins for increased strength and security
  • Patented side locking bar technology offers improved security by protecting against lock bumping, an attack technique used to defeat conventional pin & tumbler locks.
  • Meets ADA/ANSI A117.1 requirements, ensuring accessibility to all disabled persons
  • Do not use prints made from this website to mark distances.
    Due to individual printers, dimensions on installation instructions may not print at an accurate scale.

  • Kwikset products are backed by one of the most comprehensive warranty programs available. You can feel confident that with the purchase of Kwikset you have selected the best quality product, backed by the best customer service available.

    This product comes with a lifetime mechanical and finish warranty to the original residential user of Kwikset against defects in material and workmanship as long as the original user occupies the residential premises upon which the product was originally installed. One year electronic warranty. This warranty DOES NOT COVER scratches; abrasions; deterioration due to the use of paints, solvents or other chemicals; abuse; misuse; or product(s) used in commercial applications. Upon return of a defective product to Kwikset Corporation, Kwikset may repair or replace the product or refund the purchase price. Kwikset is not liable for incidental or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights that vary from state to state. If a mechanical or finish defect occurs, please call 1-800-327-LOCK (5625) in the U.S. and Canada or return it to Kwikset Corporation, Consumer Services, 19701 Da Vinci, Lake Forest, CA 92610. For customers outside of the U.S. and Canada, claims under this warranty must be made only to either the place of purchase or to the listed importer.

    Consumer Services
    19701 Da Vinci
    Lake Forest, CA 92610
    1-800-327-LOCK
  • No specialty functions available
  • I accidently purchased the 159 which is double cylinder. Is it possible to change the inside face such that it will function like the 158?

    Asked by: MarcS
    Hello Marc s,Thank you for your interest in Kwikset products. Kwikset does not manufacture spare parts to convert from a double cylinder to a single cylinder on this model. We apologize for the inconvenience.Thank you,Kwikset Support Team
    Answered by: Wendy
    Date published: 2016-07-26

    What is the dimension of the faceplate on the exterior of the door? I am trying to match size of faceplate of a Schlage handleset. All my other doors have Kwikset locks and I want the same lock. I need something square/rectangular 2.5" wide.

    Asked by: Mel
    Hello Mel,Thank you for your interest in Kwikset model # 158-SQT-15-SMT. The dimension of the exterior faceplate is 2-19/32".Thank you,Kwikset Support Team
    Answered by: Wendy
    Date published: 2016-06-06

    WHAT DOES THE SQT STAND FOR ON A 158 HALIFAX DEADBOLT

    Asked by: JFB
    Hello JFB,Thank you for your interest in Kwikset 158-SQT-15-SMT. The SQT stands for Square Rosette plate.Thank you,Kwikset Support Team
    Answered by: Wendy
    Date published: 2016-03-28

    I have a baldwin lockset currently on my door, In addition to this I wanted to get the kwikset 158 milan deadbolt, Would I be able to use just one key for both the baldwin lockset and the kwikset in order to gain entry into my house. Please suggest

    Asked by: sam reddy
    Hello Sam Reddy,Thank you for your interest in the 158 Milan Round Deadbolt in Satin Nickel with Model# 158 RDT 15 SMT. Baldwin Prestige units that state that they are SmartKey compatible can be rekeyed to work with the 158 Milan Round Deadbolt in Satin Nicket that features SmartKey technology. Kwikset's SmartKey re-key technology provides you the flexibility to re-key your own locks quickly and easily without removing them from your door. If your house keys are Kwikset compatible (KW1 or KW10) keys then you can use the SmartKey technology to rekey them. SmartKey products can be re-keyed at the consumer level by following the re-keying instructions, but is not compatible with other brands. For more information about SmartKey technology please see the following link: http://www.kwikset.com/SmartSecurity/Re-Key-Technology.aspx.Thank you,Kwikset Support
    Answered by: Marie M
    Date published: 2016-03-18

    I have a baldwin lockset currently on my door, In addition to this I wanted to get the kwikset 158 milan deadbolt, Would I be able to use just one key for both the baldwin lockset and the kwikset in order to gain entry into my house. Please suggest

    Asked by: Sandeep Reddy
    Hello Sandeep Reddy,Thank you for your interest in the 158 Milan Round Deadbolt in Satin Nickel with Model# 158 RDT 15 SMT. Baldwin Prestige units that state that they are SmartKey compatible can be rekeyed to work with the 158 Milan Round Deadbolt in Satin Nicket that features SmartKey technology. Kwikset's SmartKey re-key technology provides you the flexibility to re-key your own locks quickly and easily without removing them from your door. If your house keys are Kwikset compatible (KW1 or KW10) keys then you can use the SmartKey technology to rekey them. SmartKey products can be re-keyed at the consumer level by following the re-keying instructions, but is not compatible with other brands. For more information about SmartKey technology please see the following link: http://www.kwikset.com/SmartSecurity/Re-Key-Technology.aspx.Thank you,Kwikset Support
    Answered by: Marie M
    Date published: 2016-03-18

    What is the max door thickness 

    Asked by: Chiqui to
    Hello Chiqui to,Thank you for your interest in Kwikset model # 158-SQT-15-SMT. The door thickness for proper installation can be 1-3/8" to 1-3/4" in thickness with an option of 2-1/4" using a thick door kit.If the thick door kit is needed please contact Kwikset technical support at 1-800-327-5625 to request a thick door kit.Thank you,Kwikset Support Team
    Answered by: Wendy
    Date published: 2016-02-09

    WHAT SIZE HOLE DO I DRILL FOR THE 158SQT HALIFAX DEADBOLT W/ SQUARE ROSE 1-1/2 OR 2-1/8

    Asked by: BILL HENN
    Hello Bill,Thank you for your interest in the Halifax deadbolt, model #158-SQT-15-SMT. This unit requires a bore hole of 2-1/8”.Thank you,Kwikset Support
    Answered by: Marie M
    Date published: 2016-01-21

    can I use it without the square backplate? 

    Asked by: pembrokegetacar
    Hello pembrokegetacar,Thank you for your interest in Kwikset model # 158-SQT-26-SMT. It is not recommended to use the lock without all parts. This may cause the screws to be exposed and the lock to be unsecured.Thank you,Kwikset Support Team
    Answered by: Wendy F
    Date published: 2016-01-12
    • 2016-07-29T09:48CST
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