Kwikset 159RDT SMT Milan Keyed...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$118.30
$79.09
Kwikset 159RDT SMT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey KWI-159RDT-S

Kwikset 159RDT SMT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey

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Model: 159RDT-15S
From the Milan Collection
$118.30
$79.09
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$118.30
$79.09
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KWIKSET 159RDT SMT MILAN DOUBLE CYLINDER DEADBOLT OVERVIEW

  • 159RDT SMT Milan double cylinder deadbolt. Deadbolt operated by key both sides.
  • Protect your home with both designer style and superior security with the 159RDT SMT Halifax Double Cylinder Deadbolt from Kwikset Signature Series™ product. Perfect for exterior doors where keyed entry and security is essential. Featuring SmartKey Security™, this lock protects against advanced break-in techniques and allows you to re-key your lock yourself in just seconds. Compatible with Kwikset (KW1) keyway or (SC1) keyway options, this deadbolt is operated by a key both sides. It comes with two keys and has two interchangeable faceplates - round corner and square corner. The latch is adjustable to fit all standard door preparations from 2-3/8" to 2-3/4". The full lip round deadbolt strike and 1-inch deadbolt throw provide an additional level of security. You can easily install this deadbolt in minutes with just a screwdriver, and it comes with a lifetime mechanical and finish warranty. And now with Microban Antimicrobial product protection to keep door hardware 99.9% cleaner than unprotected surfaces.
  • Buy this Kwikset Signature Series™ Milan Double Cylinder Deadbolt today for a stylish and secure solution for your home interior doors!

MILAN DEADBOLT PRODUCT FEATURES

  • Designer style and superior security with this Kwikset Signature Series™ product
  • For use on exterior doors where keyed entry and security is needed
  • Featuring SmartKey Security™, which protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds.
  • SmartKey Security™ re-key technology is compatible with Kwikset (KW1) keyway or (SC1) keyway options
  • Deadbolt operated by key both sides.
  • Comes with 2 keys
  • Latch has adjustable backset 2-3/8 to 2-3/4 to fit all standard door preparations
  • Includes full lip round deadbolt strike
  • 1 inch deadbolt throw
  • Easily installs in minutes with just a screwdriver.
  • Lifetime mechanical and finish warranty
  • Microban Antimicrobial product protection keeps door hardware 99.9% cleaner than unprotected surfaces

COLOR VARIATIONS

  • Kwikset 159RDT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey 11PS (Venetian Bronze)
    Kwikset 159RDT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey 15S (Satin Nickel)
    Kwikset 159RDT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey 26S (Polished Chrome)
    Kwikset 159RDT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey 26DS (Satin Chrome)
    Kwikset 159RDT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey 514S (Matte Black)

Note: Some concept images shown with item are not included.

MILAN DEADBOLT COLLECTION

  • Kwikset 158RDT Milan Keyed Entry Single Cylinder Deadbolt
    Kwikset 158RDT SMT Milan Keyed Entry Single Cylinder Deadbolt with SmartKey
    Kwikset 982RDT Milan Deadbolt UL Keyed Entry Single Cylinder Door Lock
    Kwikset 982RDT SMT Milan Deadbolt UL Keyed Entry Single Cylinder Door Lock with SmartKey
    Kwikset 159RDT Milan Keyed Entry Double Cylinder Deadbolt
    Kwikset 159RDT SMT Milan Keyed Entry Double Cylinder Deadbolt with SmartKey

RESOURCES & DOWNLOADS

Manufacturer Resources

Product Specs

Series:
Signature Series
Collection:
Milan
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:
Double 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:
1-1/4" - 3-5/8" Round Corner Strike
Backset (Distance):
Adjustable 2-3/8 or 2-3/4
Product Function:
Double Cylinder
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 159RDT-15S – Frequently Asked Questions

1) Will the Kwikset 159RDT SMT Milan deadbolt fit my door if the existing bolt hole is 2-3/8 inches from the door edge?
Yes. The Milan 159RDT latch is adjustable between a 2-3/8 and 2-3/4 inch backset, so it drops into either of the two standard bore preps without ordering a different part. Door thickness is covered from 1-3/8 to 1-3/4 inches, which takes in both a standard 1-3/4 inch exterior door and the thinner 1-3/8 inch doors common in older homes. Set the backset on the latch before you slide it into the edge bore.
2) What is the difference between a double cylinder deadbolt and a single cylinder deadbolt, and which do I need?
A double cylinder deadbolt like the Kwikset 159RDT Milan takes a key on both sides, inside and out. There is no thumbturn. That is what you want on a door with glass beside it or in it, where someone could break the glass and reach through to turn a thumbturn. The tradeoff is that nobody exits without a key in hand, so many jurisdictions restrict double cylinder on a required egress door in a rental or commercial space. If you want a thumbturn inside, the 158RDT Milan is the single cylinder version of the same trim.
3) Can I key the Kwikset 159RDT SmartKey deadbolt to match the Kwikset locks already on my other doors?
Yes, and you can do it yourself. The 159RDT Milan uses SmartKey Security, which lets you re-key the cylinder in seconds with the learn tool and a working key, so a landlord or property manager can bring a new unit onto an existing key without a locksmith. It accepts either the Kwikset KW1 keyway or the Schlage SC1 keyway, so it can be made to work on a building already keyed to Schlage. Both cylinders are SmartKey, so re-key the inside and the outside. Two keys ship with it, and you can order it keyed alike or keyed different.
4) Will the Kwikset Milan deadbolt latch into the strike plate that is already in my frame?
Most likely. The Milan 159RDT throws a 1 inch bolt, which is the standard residential deadbolt projection, and it ships with a full lip round deadbolt strike sized 1-1/4 by 3-5/8 inches. That is the common round corner strike cutout, so if your frame is already mortised for a 1-1/4 x 3-5/8 round corner strike it drops straight in. The deadbolt itself also comes with two interchangeable faceplates, round corner and square corner, so the latch face matches whichever edge prep the door already has.
5) Is the Kwikset 159RDT deadbolt strong enough for an apartment building or commercial entrance?
The Milan 159RDT is ANSI/BHMA Grade 2 and Kwikset classes it as residential hardware, so it suits single family, condo and light multi-family unit doors rather than a high traffic commercial opening. For a building entrance or anything with heavy cycle counts, step up to a Grade 1 double cylinder such as the Design Hardware D1 Series or the Dexter DB1000 double cylinder. If you want to stay at Grade 2 but on a commercial line, the Hager 3214 double cylinder and the Delaney LU Series double cylinder are both Grade 2.
6) I need a double cylinder deadbolt for a door with a sidelight. What are my options besides Kwikset?
Double cylinder, keyed both sides, is the right call next to glass. Alongside the Kwikset 159RDT Milan, options run from the Grade 1 Design Hardware D1 Series (extra heavy duty, 1-3/4 inch doors) and Dexter DB1000 double cylinder (1-3/8 to 1-7/8 inch doors), through Grade 2 with the Dexter DB2000 double cylinder and Hager 3214 with a Schlage C keyway, down to Grade 3 with the Callan 210S and the Deltana 7312KA2, which covers 1-3/8 to 2 inch doors. On the decorative side, Baldwin Reserve offers a double cylinder contemporary deadbolt in round and square trim, and Emtek has the 8323 Modern Disc in brass.
7) What is a commercial-grade double cylinder deadbolt equivalent to the Kwikset 159RDT SMT Milan?
The Kwikset 159RDT SMT Milan is a Grade 2 double cylinder deadbolt rated residential. For a commercial specification on the same keyed-both-sides function, the Hager 3214 is a Grade 2 double cylinder deadbolt with a Schlage C keyway, and the Dexter DB2000 Series DB2000-DCT is a Grade 2 double cylinder deadbolt. Both carry the same 1-3/8 inch to 1-3/4 inch door thickness range as the Milan, so the existing door prep carries over. The trade is the keying system: the Milan uses SmartKey Security, which the owner can re-key in seconds, while the Hager 3214 runs a conventional Schlage C cylinder that a locksmith pins.
8) My door is thicker than 1-3/4 inch - what deadbolt fits instead?
The Kwikset 159RDT SMT Milan covers doors from 1-3/8 inch to 1-3/4 inch. For a thicker door, the Deltana 7312KA2 is a Grade 3 double cylinder deadbolt rated 1-3/8 inch to 2 inch, and the Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock rated 1-3/4 inch to 2-1/4 inch, though the DL3011 is a cylinder by blank plate arrangement rather than keyed both sides. If the door falls just above 1-3/4 inch, the Dexter DB1000-DCT is a Grade 1 double cylinder deadbolt reaching 1-7/8 inch.
9) What should I use instead of a double cylinder deadbolt on an egress door?
A double cylinder deadbolt such as the Kwikset 159RDT SMT Milan is keyed both sides, so it needs a key to exit. Where the opening has to release without a key, the single cylinder version of the same Milan trim is the 158RDT SMT, which is cylinder outside and thumbturn inside. In commercial substitutes, the Dexter DB2000-SCT is a Grade 2 cylinder x thumbturn deadbolt with the same 1-3/8 inch to 1-3/4 inch door thickness range, and the Arrow E60 is a Grade 2 non-keyed exit deadlock, blank plate outside and thumbturn inside, also 1-3/8 inch to 1-3/4 inch, for an opening that should never be keyed from outside at all.
10) Is there a Grade 1 double cylinder deadbolt for a higher-traffic opening than a Grade 2?
The Kwikset 159RDT SMT Milan is ANSI/BHMA Grade 2. Stepping up to Grade 1 on the same keyed-both-sides function, the Dexter DB1000-DCT is a Grade 1 double cylinder deadbolt with a 1-3/8 inch to 1-7/8 inch door thickness range, and the Design Hardware D1 Series D1-D is a Grade 1 extra heavy duty double cylinder deadbolt built for 1-3/4 inch doors. Check the door before ordering the D1 Series: it is a fixed 1-3/4 inch thickness, while the Milan and the DB1000 both cover thinner doors.
11) Which deadbolts look like substitutes for a double cylinder but are not keyed on both sides?
A number of deadbolts share the word double or read as a peer to the Kwikset 159RDT SMT Milan but do not key from both sides. The Arrow DBX61, Cal-Royal CB160, Bravura 310RC Elite and Callan 200S-G2 are all Grade 2 deadbolts with cylinder x thumbturn function, which is keyed outside only. The Baldwin Reserve 8BR0618001 is listed under double cylinder but is a deadbolt spacer, a component rather than a lock. And the Corbin Russwin DL3011 and Hager 3118 are Grade 1 deadlocks with a cylinder by blank plate arrangement, so the inside face has no operator at all. If the requirement is key on both sides, the Milan 159RDT and peers listed as double cylinder are the right family.
12) Which deadbolt should I use on a classroom or institutional opening rather than the Kwikset Milan?
The Kwikset 159RDT SMT Milan is a residential Grade 2 deadbolt. For institutional openings specified around classroom function, the Falcon D111 is a Grade 1 heavy duty classroom deadbolt with adjustable backset, the Falcon D211 is the Grade 2 medium duty classroom deadbolt with single cylinder operation, and the Hager 3118 is a Grade 1 classroom deadbolt with a Schlage C keyway and 6-pin cylinder for 1-3/8 inch to 1-3/4 inch doors, the same door range the Milan covers. The Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch where the opening carries a longer fire rating than the Milan's UL 1/3 hour option.
13) Do I have to order the Kwikset Milan deadbolt for a left hand or right hand door?
No handing to specify. The Milan 159RDT deadbolt is reversible and a deadbolt has no handed latch face, so the same part works on a left hand or right hand swing. Set the backset to match the bore, pick the faceplate corner that matches the door edge, and install it.
14) Can I put the Kwikset 159RDT SMT Milan deadbolt on a fire rated door?
Not as ordered here. Kwikset offers an optional UL 1/3 hour fire rating on the deadbolt functions, but that is an option you have to specify, not something the standard 159RDT SMT Milan carries. If you need a fire rated deadbolt in hand, the Hager 3215 single cylinder and Hager 3214 double cylinder are both fire rated Grade 2 units, and the Cal-Royal CRB800 is a heavy duty single cylinder with a UL 3-hour fire rated latch.
15) Do I need to drill a new hole to install the Kwikset 159RDT Milan deadbolt, and what tools does it take?
On a door already bored for a deadbolt, no drilling. The Milan 159RDT installs with a screwdriver alone, because the latch adjusts to either standard backset and both faceplate corner styles are in the box. What you may still need to touch is the frame: the included full lip round strike measures 1-1/4 by 3-5/8 inches and needs a mortise that matches, plus a bolt pocket deep enough for the 1 inch throw. On a door with no deadbolt prep at all, you are boring the face and the edge first.
16) I need a double cylinder deadbolt with a contemporary look to match other hardware - what are the options?
The Kwikset 159RDT SMT Milan is a contemporary-style double cylinder deadbolt offered in Venetian Bronze, Satin Nickel, Satin Chrome, Polished Chrome and Matte Black. For a different contemporary trim shape on the same function, the Baldwin Reserve DC.CRD is a double cylinder contemporary round deadbolt and the DC.CSD is the square-trim version of the same. The Emtek 8323 Modern Disc is a brass double cylinder deadbolt with a disc-shaped rose, and the Baldwin Estates 8011 is a contemporary 1-5/8 inch double cylinder deadbolt. Pick the rose shape that matches the levers already on the other doors.
17) Can I get a double cylinder deadbolt that takes an interchangeable core or a house keyway instead of SmartKey?
The Kwikset 159RDT SMT Milan runs SmartKey Security, which re-keys at the door and accepts KW1 or SC1 keyway options. Where a facility standardizes on its own cylinder program instead, the Deltana CL200LAIC is a Grade 2 deadbolt prepped for an interchangeable core and supplied non-cylinder, the Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep less core covering 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 US26D. All three are single cylinder, so a keyed-both-sides opening stays with the Milan or a peer listed as double cylinder such as the Hager 3214.
18) What is the difference between the Kwikset 159RDT SMT Milan and an electronic or keypad deadbolt?
The Kwikset 159RDT SMT Milan is a mechanical double cylinder deadbolt, key operated on both sides, with a 1 inch throw. If codes or credentials are wanted instead of keys, the Delaney KP400 is a Grade 2 electronic deadbolt with a programmable remote, the Codelocks CL2200 is a medium duty electronic surface deadbolt in Brushed Steel, and the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. Those add power and credential management to maintain; the Milan needs only the key and re-keys itself through SmartKey.
19) Is a mortise deadbolt an alternative to the Kwikset 159RDT SMT Milan?
No - the Kwikset 159RDT SMT Milan is a bored tubular deadbolt with an adjustable 2-3/8 or 2-3/4 backset latch that drops into a standard cross-bore prep. Mortise deadbolts need a pocket cut into the door edge instead. The Dormakaba D900 small case mortise dead bolt is cylinder x thumbturn with SC keyways, the Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch in square and round trim, and the Codelocks CL2210 is an electronic mortise deadbolt. Any of those requires a mortise-prepped door, not the bored prep the Milan uses.
20) Is there a version of the Kwikset Milan deadbolt with an antimicrobial coating for a healthcare or hospitality property?
The Milan 159RDT SMT carries Microban antimicrobial product protection built into the finish, which Kwikset states keeps the hardware 99.9 percent cleaner than an unprotected surface. That is a surface treatment, not an infection control claim, and it comes on the standard product rather than as an upcharge option. Note the Grade 2 residential classification if you are specifying for a high traffic facility door.
How fast can I get the Kwikset 159RDT-15S 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 159RDT-15S come with a warranty?
Absolutely. The Kwikset 159RDT-15S 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 159RDT-15S?
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