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

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)