BEST 8T Series Single Cylinder Keyed Entry Tubular Deadbolt with 1" Stainless Steel Throw

BEST 8T Series Single Cylinder Keyed Entry Tubular Deadbolt with 1" Stainless Steel Throw

Premium Security Deadbolt for Commercial and Residential Applications

The BEST 8T Series tubular deadbolt delivers enhanced security with a full 1" stainless steel throw bolt and attack-resistant design features. Built with identical tubular assemblies that fit standard door preparations, this single cylinder deadbolt is often paired with cylindrical locks in commercial office spaces and residential applications where greater security is needed. The solid construction includes tapered cylinder rings and optional hidden mounting screws for brute force resistance, while maintaining compatibility with existing BEST masterkeyed systems through the original interchangeable core design.

Professional Features & Benefits

• Full 1" Stainless Steel Throw: Solid stainless steel deadbolt provides enhanced durability and extra protection against forced entry attempts.
• Attack-Resistant Design: Free-turning, wrench-resistant, tapered cylinder ring and optional hidden mounting screws enhance security against tampering.
• Standard Door Preparation: Fits standard door preps with 2 3/8" backset for 8T2 and 2 3/4" backset for 8T3 models for easy installation.
• Premium Construction: Solid extruded brass or bronze cylinder with wrought brass or bronze trim for long-lasting performance.
• Interchangeable Core System: Compatible with existing BEST masterkeyed systems and permits instant, economical rekeying with the original interchangeable core.
• Fire Door Rated: UL listed for use as auxiliary lock on 3-hour fire doors (GWXT) with C-UL mark for Canadian compliance.
• Simple Installation: Self-aligning and reversible strike design simplifies installation without compromising security performance.
• 3 Year Warranty: Manufacturer warranty provides added confidence and protection for commercial applications.

Technical Specifications

• Faceplate: Brass or bronze; 8T2 - 1” x 2 1/4”; 8T3 - 1 1/8” x 2 1/4”
• Strikes: ANSI rectangular 1 1/8” x 2 3/4”; ANSI curved lip 1 1/4” x 4 7/8”;
  ANSI curved lip 1 1/8” x 2 3/4”; ANSI high security rectangular 1 1/4” x 4 7/8”
• Trim: Wrought brass or bronze; rose or turned lever rose; 2 3/4” diameter
  to cover 2 1/8” bore; machined brass or bronze cylinder ring
• Backset: 2 3/8” for 8T2; 2 3/4” for 8T3
• Deadbolt: 8T2 - 1” throw, 5/8” x 7/8”, brass nickel plated, concealed hardened
  steel free-turning pin; 8T3 – 1” throw, 5/8” x 7/8”, solid stainless steel
• Door thickness: 1 3/4” doors standard, other thicknesses available 

DOWNLOAD & RESOURCES

• T Series Sell Sheet
• T Series FAQs
• T Series Catalog
• T Series Green Circle Certificate
• BEST Product Warranty Reference Chart

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (1-3/4" standard), backset dimensions (2 3/8" for 8T2, 2 3/4" for 8T3), and bore requirements.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for proper alignment.
3. Prepare door by drilling required holes per manufacturer specifications, ensuring clean cuts for proper fit and operation.
4. Install the tubular deadbolt assembly and secure all mounting hardware per manufacturer torque specifications.
5. Install the self-aligning and reversible strike on the door frame, adjusting for proper deadbolt engagement and smooth operation.
6. Test deadbolt operation from both sides to verify proper function, smooth throw action, and complete engagement. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Residential Properties
• Healthcare Facilities (including radioactive doors with lead line options)
• Educational Institutions
• Government Buildings
• Multi-Tenant Properties
• High-Security Storage Areas

Why Choose BEST Quality?

BEST 8T Series deadbolts incorporate top quality design, engineering, and premium materials including solid stainless steel construction and brass or bronze components. UL listed for 3-hour fire door applications with 3-year manufacturer warranty, these deadbolts are engineered for demanding commercial applications where dependable security performance is essential. The interchangeable core system and compatibility with existing BEST masterkeyed systems provide long-term flexibility and cost-effective security management.