BEST 2305 Series Mortise Exit Device with Key Controls Thumb Piece

BEST 2305 Series Mortise Exit Device with Key Controls Thumb Piece

Professional Mortise Exit Device Solution

The BEST 2305 Series Mortise Exit Device delivers Grade 1 commercial-grade performance for single and double door applications. Designed for 1-3/4" thick doors up to 4'-0" wide openings with 2-3/4" backset, this handed device covers ANSI A115.2 (Type 161), A115.18 cylinder lock and A115.1 (Type 86) Mortise Lock preparation. UL Listed for Panic and Fire Exit Hardware with BHMA certification for ANSI 156.3, Grade 1 performance standards.

Professional Features & Benefits

• Door Compatibility: Accommodates 1-3/4" thick doors up to 4'-0" wide openings with standard 3'-0" wide configuration for versatile commercial applications.
• Heavy-Duty Construction: Cover, Touchbar, Device Channel, Lock/Hinge Side Filler and End Cap manufactured from heavy wrought Brass, Bronze or Stainless Steel with Investment Cast Steel chassis.
• Grade 1 Performance: BHMA certified for ANSI 156.3, Grade 1 standards ensuring reliable operation in demanding commercial environments.
• UL Listed Compliance: Certified for both Panic and Fire Exit Hardware applications meeting critical life safety requirements.
• Mortise Lock Integration: Covers ANSI A115.1 (Type 86) Mortise Lock preparation with 2-3/4" backset and stainless steel deadlocking latchbolt with 3/4" throw.
• Field Reversibility: Touchbar Assembly, Mortise Lock and Trim may be reversed in the field with complete device reversibility available with mortise strike for opposite hand.
• Retrofit Compatibility: 2300 Series devices designed to retrofit into other manufacturers' mounting hole locations with factory customization options available.
• Professional Dogging: Standard 1/4" turn hex key dogging for maintenance access (not available on Fire Exit Hardware).

Technical Specifications

• Commercial/Residential: Commercial
• Department: Door Hardware
• Lock Type: Mortise
• Product Category: Exit Devices and Trim
• Product Group: Exit Devices and Trim
• Product Subgroup: Exit Devices - Mortise
• Product Type: Exit Devices - Mortise
• Series: 2300 Series
• Subcategory: Mortise Exit Devices

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including 1-3/4" door thickness, ANSI A115.1 (Type 86) Mortise Lock preparation, and proper handing designation (RHRB or LHRB).
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for mortise exit device and lock components.
3. Prepare door and frame by drilling required holes and routing mortise lock preparation per ANSI specifications with 2-3/4" backset requirements.
4. Install mortise lock assembly, exit device chassis, and all mounting hardware securing components to door and frame per manufacturer torque specifications.
5. Adjust touchbar height to standard 39-15/16" from floor and configure operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation including latchbolt throw, guardbolt function, and dogging mechanism to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose BEST Quality?

BEST 2305 Series mortise exit devices deliver professional-grade reliability with heavy wrought Brass, Bronze or Stainless Steel construction and Investment Cast Steel chassis engineered for demanding commercial applications. BHMA certified for ANSI 156.3, Grade 1 performance with UL Listed compliance for both Panic and Fire Exit Hardware applications. Engineered for demanding commercial applications where dependable performance and code compliance are essential.