|BHMA Certification||Grade 3|
|Backset||2-3/4", 2-3/8", Adjustable 2-3/8" or 2-3/4"|
|Cylinder||SmartKey 5 Pin|
|Door Thickness||1-1/2", 1-3/4", 1-3/8", 1-5/8"|
|Handing||Left, Reversible, Right|
|Latch Faceplate||Drive-In, Round Corner, Square Corner|
Configure your Kwikset 665-3S Double Cylinder Deadbolt with SmartKey from the 660 Series
Free Keying Option more info ▼
Choose "Keyed Alike" to use the same key on multiple locks or "Keyed Different" to ensure that your locks will have different key codes.
Please contact customer service for quotes on master keying or to key multiple manufacturers alike.
Two keys provided per key code.
Latch Type more info ▼Most residential doors are mortised for either a round corner or square corner latch. Drive-in latches do not have a faceplate and are generally used on hollow doors.
Please finish configuring product before adding to cart
Keyed Entry (Double Cylinder) Function: A double cylinder lock is keyed on both sides of the door and is only locked and unlocked via a key. Often times they are used on doors where glass is near the door that could be easily broken and the thumbturn on a standard single cylinder lock would be accessible. Caution: Double Cylinder locks can pose a safety hazard in times of emergency due to requiring a key to unlock. Please check local codes before installing.
- Equipped with a full 1" throwbolt
- Fully adjustable latch to fit all standard door preparations (2-3/8" to 2-3/4" Backsets)
- ANSI/BHMA Grade 3 Security
- Lifetime mechanical and finish warranty
- Patented side locking bar technology offers improved security by protecting against lock bumping, an attack technique used to defeat conventional pin & tumbler locks.
- This technology allows you to re-key your lock in seconds with 3 simple steps and features stainless steel racks, pins, and side locking bar for increased strength and security.
- Backset: Adjustable for 2-3/8" or 2-3/4"
- Crossbore 2-1/8"
- Edge Bore 1"
- Latch Face 1" x 2-1/4"
- Door thickness: 1-3/8"-1-3/4" doors standard.
- Cylinder: 5-pin SmartKey cylinder, cannot be keyed alike to a 6 pin cylinder.
- Bolt: 1" throw
- 660-S: Single Cylinder Deadbolt
- 665-S (This Model): Double Cylinder Deadbolt
Additional Kwikset Links
Our SKU: 665-S
This product is listed under the following manufacturer number(s):
- Antique Brass
- Antique Nickel
- Polished Brass
- Polished Chrome
- Satin Chrome
- Satin Nickel
- Venetian Bronze
*Denotes a finish or option that has been discontinued
5 Questions from the Community
This is the Smart Key version which allows you to re-key the lock yourself! Just insert the original key along with the included Smart Key tool and then insert your new key.
How does this deadbolt differ from from the 665?
A. This is the Smart Key version which allows you to re-key the lock yourself! Just insert the original key along with the included Smart Key tool and then insert your new key.
Yes, this can be left in the unlocked position. You will need to use the key on both sides to lock and unlock the dead bolt.
Can this double cylinder deadbolt be left in the unlocked position?
A. Yes, this can be left in the unlocked position. You will need to use the key on both sides to lock and unlock the dead bolt.
The Kwikset 665-S will need to be taken to a locksmith to reset the pins unfortunately.
Pulled the key out along with set key before it was changed. Now neither key works. How can I remedy this?
A. The Kwikset 665-S will need to be taken to a locksmith to reset the pins unfortunately.
The Kwikset 665-S can be keyed alike to non-smart key cylinders.
Can these be keyed to an existing door handle lock set that is not a Smartkey lock set? My friend needs deadbolts on her doors and the existing door handle sets use Kwikset keys. I want to key the deadbolts to the same key as the door handles, but the door handle sets are not Smartkey locks, just regular locksets. Will it work?
A. The Kwikset 665-S can be keyed alike to non-smart key cylinders.
Yes, all can be keyed the same.
Would I be able to buy 3 of these and make them all use the same key with the smart key?
A. Yes, all can be keyed the same.
Kwikset 660 Series Deadbolt Collection
Warranties cover the original residential user of Kwikset Products against defects in material and workmanship as long as the original user occupies the residential premises upon which the product was originally installed. This warranty DOES NOT COVER abused or misused products or non-commercial products used in commercial applications.
If a covered defect occurs, email or call 1- 800-327-LOCK (5625) for further assistance. A finish deterioration occurring from the use of paints, solvents or other chemicals is not a defect in the finish and is not covered by this warranty.
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. Mechanical and finish warranties are different for each Kwikset brand. One or more brands may be installed in your home (for instance, Kwikset UltraMax Signatures™ on the front door and Kwikset Maximum Security® on interior doors). Contact Kwikset for specific provisions.