Kwikset 158SQT 20 Min UL Rate...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$84.40
$49.86
Kwikset 158SQT 20 Min UL Rated Halifax Square Rose Single Cylinder Deadbolt SmartKey with 6AL FD Latch and Dual RCS and 5303 Full Lip Strike Key Coded and LESSKEY

Kwikset 158SQT 20 Min UL Rated Halifax Square Rose Single Cylinder Deadbolt SmartKey with 6AL FD Latch and Dual RCS and 5303 Full Lip Strike Key Coded and LESSKEY

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Model: 158SQT-514S.FD.DS.LK.23155
From the Halifax Deadbolt Collection
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$84.40
$49.86
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Kwikset 158SQT 20 Min UL Rated Halifax Square Rose Single Cylinder Deadbolt SmartKey with 6AL FD Latch and Dual RCS and 5303 Full Lip Strike Key Coded and LESSKEY

The Kwikset 158SQT Halifax Square Single Cylinder Deadbolt with SmartKey Security™ delivers a perfect blend of modern style and reliable protection for residential entry doors. Featuring the sleek Halifax square design, this deadbolt adds a bold, contemporary look that complements today’s modern interiors and exteriors.

This single cylinder deadbolt offers secure keyed entry on the outside with a convenient turn-piece on the inside. With SmartKey Security™, you can easily re-key the lock yourself in seconds, providing added convenience and peace of mind when keys are lost, stolen, or when moving into a new home.

Built from durable, commercial-grade materials and backed by ANSI/BHMA Grade 2 certification, the 158SQT Halifax Square Deadbolt ensures long-lasting performance and dependable security. Installation is simple with a screwdriver, making it an excellent choice for homeowners and contractors alike.

Key Features & Benefits

  • Single Cylinder Deadbolt – Keyed entry on exterior; thumb-turn locking/unlocking on interior

  • SmartKey Security™ – Allows re-keying in seconds without removing the lock

  • Modern Halifax Square Design – Contemporary style that enhances modern doors and décor

  • Durable Construction – Heavy-duty build ensures long-lasting performance

  • ANSI/BHMA Grade 2 Certified – Meets industry standards for residential security and durability

  • Easy Installation – Fits standard doors and installs quickly with just a screwdriver

  • Universal Applications – Ideal for front doors, back doors, and side entry doors

  • Trusted Kwikset Quality – Backed by a brand known for innovation and reliability

RESOURCES & DOWNLOADS

158SQT SMT Halifax Deadbolt Door Installation Guide
Kwikset Halifax Deadbolt Sell Sheet
Smartkey Instructions

 

Manufacturer Resources

Product Specs

Series:
Signature Series
Collection:
Halifax Deadbolt
Grade:
Grade 2
Warranty:
Limited Lifetime Finish, Limited Lifetime Mechanical
ANSI/BHMA:
ANSI/BHMA Grade 2
Product Group:
Mechanical Locks
Product Subgroup:
Deadbolts
Subcategory:
Deadbolts
Latch Throw:
1"
Keyed Function:
Single Cylinder
Commercial/Residential:
Residential
Keyed:
Yes
UL Listing Type:
Optional UL 1/3 Hour fire rating for all functions.
Lock Function:
Entry/Office
Cylinder and Keyways:
SmartKey Security
Features:
SmartKey
Product Attribute:
Deadbolts
Standard Strike:
RCS and 5303 Full Lip Strikes
Backset (Distance):
Adjustable 2-3/8 or 2-3/4
Product Function:
Cylinder x Thumbturn
Product Type:
Deadbolts
Door Hand Direction:
Reversible
Door Thickness Range:
1-3/8" to 1-3/4"
Product Details:
Mechanical
Product Style:
Contemporary
Product Category:
Mechanical Locks
Department:
Door Hardware

Kwikset 158SQT-514S.FD.DS.LK.23155 – Frequently Asked Questions

1) Will the Kwikset 158SQT Halifax deadbolt fit a 1-3/8 inch door, or is it only for 1-3/4?
Both. The 158SQT Halifax square deadbolt covers a 1-3/8 to 1-3/4 inch door thickness range, which takes in the standard 1-3/4 inch exterior door and the thinner 1-3/8 inch doors common on older homes and interior openings.
2) Do I have to order a specific backset for the Halifax deadbolt, or does it adjust?
No backset decision needed on the order. The latch supplied with the 158SQT adjusts between 2-3/8 and 2-3/4 inches, so it drops into either of the two standard bore layouts you will find in a door.
3) Will the Kwikset 158SQT deadbolt work with my existing strike, or do I need to cut the frame?
The bolt throws a full 1 inch, and the deadbolt ships with both an RCS round-corner strike and a 5303 full lip strike. Between the two you can match a metal frame prep or a wood jamb with an existing full lip mortise, so in most replacement jobs the frame does not need recutting. Deep 1 inch throw does require the strike pocket be bored to depth.
4) Can this Kwikset deadbolt go on a fire rated apartment entry door?
It is built with a fire door latch and carries a UL 1/3 hour fire rating option across the functions. That covers 20 minute rated openings, which is the usual rating on a dwelling unit entry door. For a 1-1/2 or 3 hour rated opening you need a heavier deadbolt, such as the Cal-Royal CRB800, which is listed with a UL 3-hour fire rated latch.
5) I manage rental units. Can I re-key these deadbolts myself between tenants?
That is the reason to buy this one. The 158SQT uses SmartKey Security, so you re-key the cylinder in place with the existing key and a new key, no removing the lock and no pinning kit. For a portfolio of units it means one person can turn over locks after a move-out without a locksmith visit. The lock is supplied key coded and less key.
6) Is a Grade 2 deadbolt like the Kwikset 158SQT enough for a commercial entrance?
The 158SQT is ANSI/BHMA Grade 2 and rated residential. It is the right pick for houses, condos and apartment entries. For a commercial or institutional opening that gets constant traffic, step to a Grade 1 tubular deadbolt: the Accentra D111 and the Dexter DB1000 single cylinder are both Grade 1 and both cover 1-3/8 inch doors upward.
7) I need a double cylinder deadbolt instead of the Kwikset 158SQT. What should I order?
The Kwikset 158SQT Halifax is single cylinder - keyed outside, thumbturn inside. For keyed both sides, the Dexter DB2000-DCT is a Grade 2 double cylinder deadbolt covering 1-3/8 inch to 1-3/4 inch doors, the same thickness range the 158SQT covers. The Hager 3214 is a Grade 2 double cylinder deadbolt with a Schlage C keyway over that same range, and the Baldwin Reserve Contemporary Square Deadbolt is a double cylinder in a square trim. Check local egress code before specifying double cylinder on an exit door.
8) What is the closest Grade 2 square-rose deadbolt to the Kwikset 158SQT Halifax if I do not need SmartKey?
The Kwikset 158SQT Halifax pairs a contemporary square rose with SmartKey re-keying at Grade 2. For the same square contemporary look without SmartKey, the Bravura 310SC Elite is a Grade 2 contemporary square deadbolt in cylinder x thumbturn, and the Brinks Mendocino E2402 is a contemporary square single cylinder deadbolt with a 4-way adjustable backset. The Callan 200S is a Grade 3 single cylinder square trim deadbolt if a lighter grade suits the opening.
9) What is a Grade 1 alternative to the Kwikset 158SQT Halifax square deadbolt for a higher-traffic entry?
The Kwikset 158SQT Halifax is an ANSI/BHMA Grade 2 single cylinder deadbolt in a cylinder x thumbturn function. If the opening calls for Grade 1, the Dexter DB1000-SCT is a Grade 1 single cylinder deadbolt in the same cylinder x thumbturn function with a 1-3/8 inch to 1-7/8 inch door thickness range, and the Accentra D111 is a Grade 1 single cylinder deadbolt with a 2-3/8 inch backset covering 1-3/8 inch to 1-3/4 inch doors. Both are keyed conventionally rather than using SmartKey re-keying.
10) For a fire rated door, is the Kwikset 158SQT Halifax the right deadbolt or is there a better match?
The Kwikset 158SQT Halifax offers an optional UL 1/3 hour fire rating across its functions and ships with a fire door latch. If the opening needs a longer rating, the Cal-Royal CRB800 is a heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch. The Hager 3215 Grade 2 single cylinder deadbolt with a 1 inch throw and the Hager 3115 Grade 2 cylinder x thumbturn deadbolt are both fire rated for 1-3/8 inch to 1-3/4 inch doors. Always match the deadbolt rating to the door and frame label.
11) I need a deadbolt that takes an interchangeable core rather than the Kwikset 158SQT SmartKey cylinder.
The Kwikset 158SQT Halifax uses a SmartKey cylinder, which is re-keyed by the owner rather than by swapping a core. For a masterkeyed system built on cores, the Deltana CL200LAIC is a Grade 2 single cylinder interchangeable core deadbolt with a 2-3/4 inch backset, the Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep less core for 1-3/8 inch to 1-3/4 inch doors, and the Delaney LM Series 301702 is a Grade 1 single cylinder less core deadbolt in dull chrome.
12) Is the Kwikset Halifax square deadbolt handed?
No handing to specify. The 158SQT is reversible and works on a left or right hand door without any change at the order stage.
13) Does the Kwikset 158SQT come as a complete deadbolt or do I need to buy the latch and strike separately?
Complete. The 158SQT ships with the 6AL fire door latch with dual adjustable backset, plus both the RCS and 5303 full lip strikes, so a screwdriver and the existing bore are all you need to hang it. Keys are not included; the lock is supplied key coded and less key.
14) What looks like a substitute for the Kwikset 158SQT deadbolt but will not work as one?
A few items sit close in the catalog but do a different job. The Arrow E60 is a Grade 2 exit deadlock in a blank plate x thumbturn function - no key outside, so it cannot replace the keyed exterior the 158SQT provides. The Callan 205S is a one-sided half-bore deadbolt with no exterior cylinder at all. The BEST 8T is a tubular deadbolt tube component rather than a complete lock, and the Arrow 460 is a mortise lock strike, not a deadbolt. The Arrow E61 26D IC is prepped for a small format interchangeable core and ships less core, so it needs a core supplied separately.
15) I want keyless entry instead of the Kwikset 158SQT SmartKey deadbolt. What are the options?
The Kwikset 158SQT Halifax is a mechanical keyed deadbolt with SmartKey re-keying. For code or credential entry, the Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote, the Codelocks CL200 is a surface deadbolt with key override, and the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. Confirm the door prep matches, since the surface-mounted Codelocks unit does not use the same bore as a tubular deadbolt.
16) What finishes does the Halifax square deadbolt come in, and will it match my other hardware?
Three finishes: Satin Nickel, Polished Chrome and Matte Black. The trim is a square rose in a contemporary profile, so it pairs with square or rectangular levers and knobs rather than traditional round rosette hardware.
How fast can I get the Kwikset 158SQT-514S.FD.DS.LK.23155 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Kwikset 158SQT-514S.FD.DS.LK.23155 come with a warranty?
Absolutely. The Kwikset 158SQT-514S.FD.DS.LK.23155 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Kwikset 158SQT-514S.FD.DS.LK.23155?
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