Schlage Residential B81 One-Si...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$61.00
$34.91
Schlage Residential Schlage Residential B81 - One-sided Deadbolt with Exterior Plate, Dual Option Latch SCR-B81

Schlage Residential B81 One-Sided Deadbolt with Exterior Plate and Dual Option Latch

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Model: B81 626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$61.00
$34.91
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Schlage Residential B81 One-Sided Deadbolt with Exterior Plate and Dual Option Latch

Commercial-Grade Security for Residential Applications

The Schlage Residential B81 One-Sided Deadbolt delivers professional-grade security with ANSI/BHMA Grade 1 commercial certification and Grade AAA residential rating. This deadbolt features a 1" throw with 25mm extension, hardened steel roller protection, and an integrated strike reinforcer with 3" screws for superior kick-in resistance. Designed for door thickness range of 1-3/8" to 1-3/4" with adjustable 2-3/8" or 2-3/4" backset, this B Series deadbolt provides reliable security backed by Schlage's lifetime finish and mechanical warranties.

Professional Features & Benefits

  • Commercial-Grade Certification: ANSI/BHMA A156.36-2016 Commercial Grade 1 and A156.40-2015 Residential Grade AAA ratings ensure professional-level security performance.
  • Enhanced Security Construction: 1" x 2-1/4" deadbolt with 25mm throw and hardened steel roller provides superior protection against cutting, sawing, and kick-in attacks.
  • Integrated Strike Reinforcement: Patented steel strike reinforcer with 3" heavy gauge screws penetrates through door jamb into wall stud for maximum holding strength.
  • Flexible Installation Options: Adjustable backset accommodates 2-3/8" or 2-3/4" door preparations with dual option latch (12-321) for versatile applications.
  • Door Compatibility Range: Standard 1-3/8" to 1-3/4" door thickness with optional configurations available up to 2-1/4" for extended applications.
  • Fire Door Rating Available: UL Listed option for 3-hour fire door applications provides code compliance for specialized installations.
  • Lifetime Warranty Protection: Schlage's lifetime finish and lifetime mechanical warranties provide long-term confidence for residential applications.
  • Complete Installation Package: Includes round corner strike with reinforcer (10-116), two keys, and all necessary mounting hardware for professional installation.

Standard Features

Certification: ANSI/BHMA A156.36-2016 Commercial Grade 1;
ANSI/BHMA A156.40-2015 Residential Grade AAA;
Available UL Listed for 3-hour fire door (B60, B80 and B81 only).
Deadbolt: 1" x 2-1/4", radius corner, 1" housing diameter, 1" throw, latch number 12-321
Strike: 1-1/8" x 2-3/4", 1/4" radius corner, strike number 10-116
Backset: Adjustable for 2-3/8" or 2-3/4"
Cylinder Standard: N: 5-pin, keyed 5-pin, C keyway, keyed alike (KA4)
Optional N6: 5-pin, keyed 5-pin, C keyway, keyed alike (KA4)
Optional N6-5: 6-pin, keyed 5-Pin, C keyway, keyed alike (KA4)
Door Range: Standard 1-3/8" – 1-3/4", Optional door thickness available up to 2-1/4" for B60.
Keys: Two keys per lock, 5-pin, keyed 5-pin, C section
Reinforcement: Integrated strike and reinforcer with 3" screws

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness range of 1-3/8" to 1-3/4" and backset requirements for 2-3/8" or 2-3/4" configurations.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for the 1" housing diameter deadbolt.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for the dual option latch configuration.
  4. Install the integrated strike reinforcer with 3" screws ensuring penetration through door jamb into wall stud for maximum security.
  5. Mount the deadbolt assembly and adjust the dual option latch for proper 2-3/8" or 2-3/4" backset alignment and smooth operation.
  6. Test deadbolt operation to verify proper 1" throw extension and retraction, and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Residential Entry Doors
  • Multi-Family Housing Units
  • Apartment and Condominium Buildings
  • Single-Family Home Security
  • Rental Property Management
  • Home Security Upgrades
  • Fire-Rated Door Applications (with UL Listed option)

Manufacturer Resources

  • Installation Instructions

Why Choose Schlage Residential Quality?

Schlage Residential B Series deadbolts deliver professional-grade security with ANSI/BHMA Grade 1 commercial certification and hardened steel construction rated for demanding residential applications. The integrated strike reinforcer with 3" screws and patented steel construction provides superior kick-in resistance. Backed by Schlage's lifetime finish and lifetime mechanical warranties, this deadbolt is engineered for reliable long-term performance where dependable home security is essential.

ANSI/BHMA Grade 1 rated — the highest residential security classification. Hardened steel bolt with anti-pick, anti-bump, and anti-saw cylinder. Support Resources: Manuals Hub: Schlage Manuals, Installation Guides & Templates (https://www.schlage.com/en/home/support/installation-manuals-templates.html) || Installation Guides: B81 One-Sided Deadbolt Installation Manual and Template (https://www.schlage.com/content/dam/sch-us/documents/pdf/installation-manuals/P515-790.pdf) || FAQs & Support: Schlage Product FAQs (https://www.schlage.com/en/home/support/faqs.html)

Manufacturer Resources

Product Specs

Series:
B Series
Keyed:
No
Standard Strike:
10-116: Round Corner Strike with Reinforcer, 2-3/4" x 1-1/8"
Standard Latch:
12-321: Dual Option Latch, Adjustable 2-3/8" and 2-3/4" Backset
Keys Included:
2
Product Group:
Mechanical Locks
Product Subgroup:
Deadbolts
Product Type:
Deadbolts
Subcategory:
Bored Locksets
Electronic:
No
Keyed Function:
Non-Keyed
Commercial/Residential:
Residential
Lock Function:
One-Sided
Product Attribute:
Deadbolts
Product Model:
B81
Product Function:
One-Sided
Door Hand Direction:
Non-Handed
Door Thickness Range:
1-3/8" to 1-3/4"
Product Category:
Mechanical Locks
Department:
Door Hardware

Schlage Residential B81 626 – Frequently Asked Questions

1) What is a Schlage B81 one-sided deadbolt and when would I use one instead of a normal deadbolt?
The B81 is a deadbolt with an exterior plate only, no cylinder and no thumbturn. There is nothing to key and nothing to turn from either face, so it locks and unlocks with a tool or from the inside hardware you pair it with, not with a key. Property managers use it on doors that must show a finished plate outside but should never be operated from outside, and on secondary or storage openings. If you need a key outside and a turn inside, this is the wrong model; a cylinder x thumbturn deadbolt such as the Falcon D111 or the Dexter DB1000 single cylinder is what you want.
2) Will the Schlage B81 fit a 1-3/8 inch door, and does it work with my existing 2-3/8 inch bore?
Door range is 1-3/8 to 1-3/4 inches, which covers both the older 1-3/8 interior door and the standard 1-3/4 entry door. The 12-321 dual option latch adjusts to either a 2-3/8 or a 2-3/4 inch backset, so it drops onto whichever prep is already in the door with no separate part to order. Housing diameter is 1 inch and the bolt face is 1 x 2-1/4 inches with a radius corner.
3) Will the Schlage B81 latch into the strike already in my frame?
The bolt throws 1 inch from a 1 x 2-1/4 inch radius corner face, and the supplied strike is the 10-116 round corner strike at 2-3/4 x 1-1/8 inches with a 1/4 inch radius. If the existing frame prep is a square corner strike or a different size mortise, you will need to file or re-prep the jamb to take the 10-116. Reusing the old strike is not the plan here anyway, because the security of the B81 comes from its integrated reinforcer and 3 inch screws going through the jamb into the stud.
4) Is the Schlage B81 deadbolt Grade 1, and can it go on a fire door?
Certified to ANSI/BHMA A156.36-2016 Commercial Grade 1 and A156.40-2015 Residential Grade AAA. A UL Listed version for 3-hour fire doors is offered on the B60, B80 and B81, so the B81 can be specified for a fire-rated opening, but the UL option has to be called out on the order; the standard build is not the fire-rated one.
5) I need a Grade 1 deadbolt with a key outside and a turn inside for an apartment entry. What should I get instead of the B81?
The B81 has no cylinder, so it will not do an apartment entry on its own. For Grade 1 with a key outside and thumbturn inside, the Accentra D111 is Grade 1 with a 2-3/8 inch backset and a 1-3/8 to 1-3/4 inch door range, the Dexter DB1000 single cylinder is Grade 1 and covers 1-3/8 to 1-7/8 inch doors, and the Falcon D111 is a Grade 1 heavy duty unit with an adjustable backset. If a Schlage C keyway is what your building is already keyed to, the Hager 3115 and 3215 run the Schlage C keyway on a 1-3/8 to 1-3/4 inch door range.
6) My door is thicker than 1-3/4 inches. Can I still use the Schlage B81?
No. The optional thicker door build, up to 2-1/4 inches, is offered on the B60, not the B81, so the B81 tops out at 1-3/4. For a thicker slab, the Corbin Russwin DL3011 covers 1-3/4 to 2-1/4 inch doors and the Deltana 7312KA2 covers 1-3/8 to 2 inches. Both are keyed rather than one-sided.
7) What should I use instead if the door needs to be locked and unlocked with a key from outside?
The B81 is a non-keyed one-sided deadbolt, so nothing operates it from the exterior face. For a keyed exterior, the Hager 3215 is a single cylinder deadbolt with a 1 inch throw rated Grade 2 for 1-3/8 inch to 1-3/4 inch doors, and the Dexter DB1000-SCT is a Grade 1 cylinder by thumbturn deadbolt covering 1-3/8 inch to 1-7/8 inch doors. Both take a key outside and a thumbturn inside on the same door thickness range the B81 fits, so the door prep carries over.
8) For a facility standardizing on Grade 1 deadbolts, what else meets that grade?
Among Grade 1 deadbolts, the Accentra D111 is a single cylinder unit with a 2-3/8 inch backset for 1-3/8 inch to 1-3/4 inch doors, the Falcon D111 is a Grade 1 heavy duty classroom function deadbolt with adjustable backset, the Delaney LM Series is a Grade 1 single cylinder less core version for facilities keying to their own cores, and the Design Hardware D1 Series is a Grade 1 extra heavy duty double cylinder for 1-3/4 inch doors. The Schlage B81 sits in that same grade band under ANSI/BHMA A156.36 Commercial Grade 1 but is the non-keyed one-sided member of the group, which is what a stairwell or storage door gets when no exterior operation is wanted.
9) Which deadbolt should go on a fire-rated door?
The Cal-Royal CRB800 is a Grade 1 heavy duty single cylinder deadbolt supplied with a UL 3-hour fire rated latch, and the Hager 3115, 3118, 3214 and 3215 all carry a fire rating for 1-3/8 inch to 1-3/4 inch doors. The Schlage B81 is one of the B Series models offered with a UL Listed option for 3-hour fire doors. If the opening is fire-rated, the fire-listed configuration has to be specified at the time of order rather than assumed from the base model number.
10) Do I have to specify handing when ordering a Schlage B81 deadbolt?
No handing to call out. The B81 is non-handed, so the same part goes on a left- or right-hand door. The only choice on the order is finish.
11) Is there another one-sided deadbolt besides the Schlage B81, and how does it differ?
The Callan 205S is the other one-sided option, a Grade 3 half-bore deadbolt. Half-bore means it does not need a through-bore, so it can go on a door you do not want cut all the way through. The B81 is the heavier of the two, certified Commercial Grade 1 with the reinforced strike. Pick the B81 where the opening takes abuse, the 205S where the prep or the duty is lighter.
12) What comes in the box with the Schlage B81, and do I need anything else to install it?
Shipped with the exterior plate, the 12-321 dual option latch, the 10-116 round corner strike with its integrated reinforcer, the 3 inch reinforcer screws, and the mounting hardware. Nothing else is required for a door already bored for a 1 inch housing on a 2-3/8 or 2-3/4 inch backset. On a blank door you supply the bore and the jamb rout, and the 3 inch screws want a jamb with a stud behind it to bite into.
13) Is the Schlage B81 electronic or can it be connected to an access system?
Mechanical only, with no electrified option. If the opening needs credential access or remote control, look at an electronic deadbolt instead: the Dormakaba Saffire LX-D is an RFID electronic deadbolt with BLE and electronic lock override, the Dormakaba Nova-D is an RFID multihousing smart deadbolt, and the DynaLock 1300 Series is a mortise electric deadbolt for heavy duty use.
14) Is there a lighter-duty one-sided deadbolt if Grade 1 is more than the door needs?
The Callan Model 205S is a one-sided deadbolt rated Grade 3, and it is prepped as a half-bore, meaning the door is drilled only partway through rather than fully cross-bored. The Schlage B81 is a full one-sided deadbolt certified to ANSI/BHMA A156.36 Commercial Grade 1 with a 1 inch throw bolt and an integrated strike reinforcer using 3 inch screws into the stud. On an interior or secondary door where the bolt is a convenience latch rather than the primary security point, the 205S covers the function; on an entry door taking traffic, the Grade 1 bolt and reinforced strike are what the B81 brings.
15) What is the difference between the B81 and a double cylinder deadbolt on an exit door?
A double cylinder deadbolt such as the Callan 210S, the Delaney LU Series, the Dexter DB2000-DCT for 1-3/8 inch to 1-3/4 inch doors, or the Design Hardware D1 Series takes a key on both faces, so the door cannot be opened from inside without a key in hand. The Schlage B81 is one-sided and non-keyed: it throws and retracts from the inside only, with a plain exterior plate. On an egress door where local code prohibits a key requirement to get out, that inside-only operation is the functional distinction to check against the authority having jurisdiction before ordering either type.
16) Can a surface-mounted or electronic deadbolt replace the B81 in the same door prep?
No, those are different preps. The Codelocks CL200 is a surface deadbolt with key override and the CL2200 is an electronic surface deadbolt, both rated light to medium duty and mounted to the face of the door rather than into a cross bore. The Codelocks CL2210 and the Dormakaba Saffire LX-D are electronic mortise and electronic deadbolt units. The Schlage B81 is a bored deadbolt drilled into the door edge and face with a 1 inch housing diameter and a 2-3/8 inch or 2-3/4 inch backset, and it is a mechanical, non-electronic lock. Swapping between the two families means new door prep, not a straight exchange.
17) Are the BEST 8T tube and the Baldwin deadbolt spacer alternatives to a complete deadbolt?
They are not. The BEST 8T is the tubular deadbolt tube component out of the T Series, the Baldwin Reserve 8BR0618001 is a deadbolt spacer for double cylinder applications, and the Arrow 460 is a mortise lock strike for latchbolt and deadbolt functions with a straight lip. Each is a piece that goes into or alongside a lock, not a lock. The Schlage B81 ships as a complete assembly with the 12-321 dual option latch and the 10-116 round corner strike with reinforcer, so ordering it does not require sourcing those parts separately.
18) What matches a B81 on doors thicker than 1-3/4 inches?
The Schlage B81 is specified for 1-3/8 inch to 1-3/4 inch doors. For thicker stock, the Corbin Russwin DL3011 is a Grade 1 cylindrical deadlock covering 1-3/4 inch to 2-1/4 inch, the Deltana 7312KA2 is a Grade 3 double cylinder deadbolt covering 1-3/8 inch to 2 inch, and the Dexter DB1000-SCT reaches 1-7/8 inch at Grade 1. Those keyed units operate differently from a one-sided bolt, so confirm the door needs exterior operation before treating them as a swap.
19) Which deadbolt matches a building already keyed to Schlage C keyway?
The Hager 3115 and 3214 are Grade 2 deadbolts with the Schlage C keyway, and the Hager 3118 is a Grade 1 classroom deadbolt with the Schlage C keyway and a 6-pin cylinder, all for 1-3/8 inch to 1-3/4 inch doors. The Schlage B81 itself is non-keyed and ships with a blank exterior plate, so it does not enter a keying schedule at all. On a fleet standardizing keys across a property, the B81 covers the openings meant to stay inside-operated while the keyed models carry the master key system.
20) What finishes does the Schlage B81 deadbolt come in for matching the rest of my building?
Nine finishes: 505 Lifetime Brass, 605 Bright Brass, 609 Antique Brass, 619 Satin Nickel, 620 Antique Nickel, 622 Matte Black, 625 Bright Chrome, 626 Satin Chrome, and 716 Aged Bronze. 626 satin chrome and 619 satin nickel are the two that usually match existing multi-family and commercial trim. Since the B81 is a one-sided plate, only the exterior face has to match.
How fast can I get the Schlage Residential B81 626 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 Schlage Residential B81 626 come with a warranty?
Absolutely. The Schlage Residential B81 626 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 Schlage Residential B81 626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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