Kwikset 663 One-Sided Deadbolt...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$20.40
$17.86
Kwikset Kwikset 663 One-Sided Deadbolt (No trim on exterior) KWI-663

Kwikset 663 One-Sided Deadbolt, 2-3/8" Backset Round Corner Latch, With Round Corner 1" x 2-1/4" Strike and Round Corner Full Lip Strike

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Model: 663-26D-RCL-RCS/5303
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$20.40
$17.86
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KWIKSET 663 ONE SIDED DEADBOLT OVERVIEW

663 One Sided Deadbolt. Deadbolt operated by thumb turn one side. No trim on exterior.

Protect your home with both designer style and superior security with the Kwikset 663 One Sided Deadbolt. Perfect for exterior doors where keyed entry and security is essential. This deadbolt is operated by thumb turn one side. This deadbolt is certified as the highest residential security, durability, and finish with ANSI/BHMA Grade 3 certification. The latch is adjustable to fit all standard door preparations from 2-3/8" to 2-3/4". The 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.

Buy this Kwikset 663 One Sided Deadbolt today for a stylish and secure solution for your home interior doors!

663 DEADBOLT PRODUCT FEATURES

  • Deadbolt operated by thumb turn on interior, no trim on exterior.
  • Deadbolt Latch has round corner faceplate
  • Latch has adjustable backset 2-3/8" to 2-3/4" to fit all standard door preparations
  • ANSI/BHMA Grade 3 Certified
  • 1 inch deadbolt throw
  • Includes round deadbolt strike
  • Locking mechanism functions with turn piece on the interior of the lock
  • Easily installs in minutes with just a screwdriver.
  • Lifetime mechanical and finish warranty

COLOR VARIATIONS

Kwikset 663 One-Sided Deadbolt 3 (Polished Brass)
Kwikset 663 One-Sided Deadbolt 15 (Satin Nickel)
Kwikset 663 One-Sided Deadbolt 26 (Polished Chrome)
Kwikset 663 One-Sided Deadbolt 26D (Satin Chrome)

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

663 DEADBOLT COLLECTION

Kwikset 663 One-Sided Deadbolt (No trim on exterior)
Kwikset 663 UL One-Sided Deadbolt (No trim on exterior)
Kwikset 667 One-Sided Deadbolt with Exterior Plate
Kwikset 664 One-Sided Retrofit Kit for 663
Kwikset 677 One-Sided Deadbolt (Fire Rated) Thumbturn with Exterior Plate

RESOURCES & DOWNLOADS

663 One Sided Deadbolt Door Installation Guide
663 One Sided Deadbolt Door Specification Sheet

Manufacturer Resources

Product Specs

Series:
660 Series
Grade:
Grade 3
Warranty:
Limited Lifetime Finish, Limited Lifetime Mechanical
ANSI/BHMA:
ANSI/BHMA Grade 3
Product Group:
Mechanical Locks
Product Subgroup:
Deadbolts
Subcategory:
Deadbolts
Commercial/Residential:
Residential
Lock Function:
Entry/Office
Features:
Microban
Keyed Function:
Non-Keyed
Keyed:
No
Product Attribute:
Deadbolts
Standard Strike:
1" - 2-1/4" Round Corner Strike
Product Function:
Thumbturn One-Side
Product Type:
Deadbolts
Door Hand Direction:
Reversible
Door Thickness Range:
1-3/8" to 1-3/4"
Product Details:
Mechanical
Product Style:
Traditional
Product Category:
Mechanical Locks
Backset (Distance):
2-3/8"
Department:
Door Hardware

Kwikset 663-26D-RCL-RCS/5303 – Frequently Asked Questions

1) Will the Kwikset 663 one-sided deadbolt work on a door that already has a 2-3/4 inch backset bore?
Yes. The 663 ships with a 2-3/8 inch backset latch that adjusts out to 2-3/4 inch, so it drops into either of the two standard residential preps without re-boring the door. Nothing to specify on the order, you set the backset at install.
2) What is a one-sided deadbolt and when should I use one instead of a regular keyed deadbolt?
A one-sided deadbolt has a thumbturn on the inside and no trim at all on the outside, so it cannot be opened from the exterior by anyone, key or not. Use it where you want a door secured from within and never entered from outside: a stockroom, an inactive leaf of a pair, a rear service door, a door that is only ever exited. If anyone needs to get in from the outside, this is the wrong part and you want a cylinder x thumbturn deadbolt instead, like the Arrow DBX61 or the Cal-Royal ED500.
3) Does the Kwikset 663 deadbolt fit a 1-3/8 inch door?
It covers 1-3/8 inch through 1-3/4 inch doors, so both the thinner older interior doors and standard 1-3/4 inch exterior doors are in range. Anything thicker than 1-3/4 inch is outside what the 663 handles.
4) Will the Kwikset 663 latch into the strike that is already in my frame?
It throws a full 1 inch bolt and comes with a round corner 1 inch by 2-1/4 inch strike plus a round corner full lip strike. If your frame has a square corner strike prep, the round corner plates will not sit in it cleanly, so plan on either the frame prep matching or swapping the plate. The 1 inch throw is what a standard deadbolt strike pocket is cut for.
5) Is the Kwikset 663 one-sided deadbolt fire rated?
Both. The 663 is offered in a fire rated version and a non fire rated version, in either Polished Chrome or Satin Chrome, so on a rated opening you have to order the fire rated option specifically. Picking the wrong one on a labeled door means it comes back off.
6) Is a Grade 3 deadbolt like the Kwikset 663 enough for an apartment building or commercial door?
The 663 carries ANSI/BHMA Grade 3 and is built as a residential lock. That is fine for single family and light in-unit use, but for corridor doors, common areas, or anything taking real traffic, step up. Of what else is available, the Cal-Royal CB160 and Arrow DBX61 are Grade 2, and the Accentra D111 and Delaney LM Series are Grade 1.
7) What do I do about the hole on the outside of the door when I install a one-sided deadbolt?
The 663 has no exterior trim, so on a door already bored through for a standard deadbolt you will be left with an open cross bore on the outside face. Kwikset makes the 664 one-sided retrofit kit for the 663 to handle that, and the 667 covers it with an exterior plate if you would rather have a finished outside face.
8) What is the closest one-sided deadbolt to the Kwikset 663 if a different brand is needed?
The Callan Model 205S is the nearest match. It is a Grade 3 one-sided half-bore deadbolt, the same grade and the same one-sided function as the Kwikset 663, which is a Grade 3 deadbolt operated by a thumbturn on one side with no trim on the exterior. Both mount into a half-bore door prep rather than a through-bore, so the exterior face of the door stays blank. The Arrow E60 covers the same idea in a different construction: it is a Grade 2 exit deadlock with a blank plate on the outside and a thumbturn on the inside, and it fits doors 1-3/8 inch to 1-3/4 inch, the same door thickness range the 663 carries.
9) What should be used instead of a one-sided deadbolt when the door needs to be locked and unlocked from outside?
A one-sided deadbolt like the Kwikset 663 is non-keyed and has no exterior trim, so it can only be thrown and retracted from the inside. When the opening needs outside key access, a cylinder x thumbturn deadbolt is the right form. In the same Grade 3 tier, the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with adjustable backset for doors 1-3/8 inch to 1-3/4 inch, and the Cal-Royal LSD is a Grade 3 single cylinder deadbolt with an ADA ergonomic thumbturn over the same door thickness range. The Callan Model 200S is a Grade 3 single cylinder deadbolt with square trim if the trim shape matters.
10) Which deadbolt carries a higher ANSI/BHMA grade than the Kwikset 663 for a commercial opening?
The Kwikset 663 is ANSI/BHMA Grade 3 and is a residential deadbolt. For higher-cycle commercial work, the Falcon D111 is a Grade 1 heavy duty deadbolt with adjustable backset, and the Accentra D111 is a Grade 1 single cylinder deadbolt with a 2-3/8 inch backset for doors 1-3/8 inch to 1-3/4 inch. In the middle tier, the Falcon D211 is a Grade 2 medium duty single cylinder deadbolt and the Arrow DBX61 is a Grade 2 single cylinder deadbolt. All of those are cylinder x thumbturn rather than one-sided, so the exterior face is keyed instead of blank.
11) What deadbolt fits a door thicker than 1-3/4 inch?
The Kwikset 663 covers doors 1-3/8 inch to 1-3/4 inch, so a thicker leaf needs a different lock. The Deltana 7312KA2 is a Grade 3 double cylinder deadbolt rated for 1-3/8 inch to 2 inch doors, and the Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock for 1-3/4 inch to 2-1/4 inch doors. The Dexter DB1000 single cylinder is Grade 1 over 1-3/8 inch to 1-7/8 inch if the door is only slightly over standard.
12) What looks like an alternative to a one-sided deadbolt but will not work in the same door prep?
Several parts share the deadbolt name without sharing the bored tubular prep the Kwikset 663 uses. The Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch and need a mortise pocket in the edge of the door. The Codelocks CL200 is a surface deadbolt with key override and mounts on the face of the door rather than through it. The Arrow 460 is a mortise lock strike for latchbolt and deadbolt functions, so it is the frame side part and not a lock at all. The Baldwin 8BR0618001 is a deadbolt spacer, a fitting piece rather than a working lock.
13) Do I need to order a left hand or right hand version of the Kwikset 663?
No handing to specify. The 663 is reversible, so the same part works on a left or right hand door and you sort it at install.
14) Is the Kwikset 663 deadbolt keyed, and can it be keyed alike with my other locks?
It is not keyed at all. There is no cylinder and no keyway on the 663, exterior or interior, just the thumbturn. If you need it on a master key or keyed alike with the rest of the building, you need a keyed deadbolt instead.
15) Is a double cylinder deadbolt a substitute for a one-sided deadbolt?
No. They solve opposite problems. The Kwikset 663 is non-keyed with a thumbturn on the inside and no trim outside, so anyone inside can leave without a key. A double cylinder deadbolt takes a key on both faces: the Callan Model 210S is a Grade 3 double cylinder deadbolt, the Dexter DB2000 is a Grade 2 double cylinder deadbolt for doors 1-3/8 inch to 1-3/4 inch, and the Design Hardware D1 Series is a Grade 1 extra heavy duty double cylinder deadbolt for 1-3/4 inch doors. Double cylinder is chosen where there is glass beside the lock and key control on egress is wanted; egress codes govern which is permitted at a given opening.
16) What deadbolt takes an interchangeable core instead of a fixed cylinder?
The Kwikset 663 is non-keyed, so there is no cylinder to core in the first place. On a facility keyed to a small format interchangeable core system, the Arrow E61 26D IC is a Grade 2 single cylinder deadlock with SFIC prep supplied less core, for doors 1-3/8 inch to 1-3/4 inch, and the Deltana CL200LAIC is a Grade 2 single deadbolt with an interchangeable core and a 2-3/4 inch backset. The Delaney LM Series is a Grade 1 single cylinder less core deadbolt in dull chrome US26D. Ordering less core means the core is keyed and supplied separately.
17) Which deadbolt should be used on a fire rated opening instead of a standard residential one?
The Kwikset 663 is offered in fire rated and non fire rated builds across polished chrome and satin chrome. Where a heavier commercial fire assembly is specified, the Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt with a UL 3-hour fire rated latch, and the Hager 3115, 3215, 3214 and 3118 are all fire rated cylinder x thumbturn deadbolts for doors 1-3/8 inch to 1-3/4 inch, the 3118 being the Grade 1 classroom version with a 6-pin Schlage C cylinder. Those are keyed locks, not one-sided.
18) What replaces a thumbturn deadbolt when coded or credential access is wanted on the same door?
The Kwikset 663 is a mechanical, non-keyed lock thrown by hand from the inside. Where access needs to be granted without handing out a key, 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 CL2210 is the electronic mortise deadbolt version. For multihousing card access, the Dormakaba Nova-D is an RFID smart electronic deadbolt and the Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override. These change the door prep and add a power source the mechanical 663 does not need.
19) Is there a deadbolt with an easier thumbturn for accessibility on a Grade 3 opening?
Yes. The Cal-Royal LSD is a Grade 3 single cylinder deadbolt with an ADA ergonomic thumbturn, and it fits doors 1-3/8 inch to 1-3/4 inch, the same door thickness range the Kwikset 663 covers at the same Grade 3 level. The difference is that the LSD is keyed on the exterior while the 663 is non-keyed with no exterior trim, so the LSD suits an entry door where the ergonomic turn is wanted on both counts.
20) What deadbolt should be specified for a classroom or institutional opening rather than the Kwikset 663?
The Kwikset 663 is a residential Grade 3 deadbolt. Classroom function deadbolts are a different specification: the Falcon D111 is a Grade 1 heavy duty classroom deadbolt with adjustable backset, the Falcon D211 is the Grade 2 medium duty classroom version with single cylinder operation, and the Hager 3118 is a Grade 1 classroom deadbolt with a Schlage C keyway and 6-pin cylinder for doors 1-3/8 inch to 1-3/4 inch. The Corbin Russwin DL2211 is a Grade 1 cylindrical deadlock in classroom function for 1-3/4 inch doors.
21) What finishes does the Kwikset 663 one-sided deadbolt come in?
Polished Chrome and Satin Chrome are the two orderable finishes, each in a fire rated or non fire rated build. If you are matching existing hardware across a building, Satin Chrome is the one that lines up with the usual US26D brushed look on other doors.
22) What is the Microban feature on the Kwikset 663 deadbolt?
The 663 is built with Microban antimicrobial protection in the finish. That is the touchpoint hygiene spec that comes up on healthcare, senior living, and multi-family jobs where the specification calls for antimicrobial hardware.
23) How hard is the Kwikset 663 to install and what tools do I need?
A screwdriver. The 663 goes into a standard bored deadbolt prep, the latch backset adjusts by hand between 2-3/8 and 2-3/4 inch, and there is no exterior trim to align, which is what makes it faster than a two-sided deadbolt. Round corner faceplate on the latch, so the edge mortise needs to be round cornered to match.
24) What is an alternative to the Kwikset 663 for a contemporary or square trim look?
The Kwikset 663 is a traditional style deadbolt. For contemporary trim, the Bravura 310SC Elite is a Grade 2 contemporary square deadbolt and the Bravura 310RC Elite is a Grade 2 contemporary round deadbolt, both cylinder x thumbturn. The Brinks Mendocino is a contemporary square single cylinder deadbolt with a 4 way adjustable backset, and the Brinks Raleigh is the transitional round equivalent, also with 4 way adjustable backset. All four are keyed on the exterior rather than one-sided.
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Can I return it if it doesn’t work for me?
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Does the Kwikset 663-26D-RCL-RCS/5303 come with a warranty?
Absolutely. The Kwikset 663-26D-RCL-RCS/5303 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 663-26D-RCL-RCS/5303?
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