The BEST 45H Series Mortise Lock is a high-performance locking solution engineered for strength, durability, and ease of installation. Designed for commercial and high-traffic applications, this lock series meets the standards set by ANSI A156.13 and is suitable for doors ranging from 1-3/4" to 5" in thickness. The 45H Series includes a variety of design and functional features, such as a solid one-piece stainless steel latch, a self-aligning trim mechanism, and a field-reversible case that allows for easy handing changes without opening the lock.
Installation instructions for the 45H Series are available in multiple formats, including French, Spanish, and standard drilling methods, which are essential for ensuring proper fit and function in different door configurations. Additionally, the lock's design accommodates a range of finishes and configurations, allowing it to blend with diverse architectural styles while maintaining robust security and performance.
This article provides an in-depth exploration of the BEST 45H Series Mortise Lock, covering its key features, installation instructions, technical specifications, and compliance standards. The guide is structured to assist professionals and DIY users in understanding the product’s capabilities and how to implement it effectively.
Key Features of the BEST 45H Series Mortise Lock
The BEST 45H Series Mortise Lock is a Grade 1 office mortise lock designed for commercial applications where high security and durability are required. The lock incorporates several advanced features that contribute to its performance and longevity.
One of the most notable characteristics of the 45H Series is its superior strength and security, achieved through a solid one-piece stainless steel latch. This design increases the surface contact with the strike by 50%, enhancing the lock’s resistance to forced entry. Additionally, the latch is reversible and rotates 180 degrees, allowing for easy handing changes without the need to open the lock case. This feature significantly reduces installation time and complexity.
The lock is also equipped with a roller bearing hub mechanism, which ensures smooth and wear-resistant operation. This mechanism reduces friction and wear over time, contributing to the lock’s long service life. The 45H Series further includes a self-aligning trim mechanism, which simplifies the installation process by allowing the lock components to align automatically with the door bevel. This design minimizes the need for manual adjustments, ensuring faster and more accurate installation.
Another important feature is the lever return spring mechanism, located within the trim. This component prevents lever droop and ensures that the lever returns to its horizontal position with a firm, positive action. This is particularly useful in high-traffic environments where consistent operation is essential.
The 45H Series also includes a non-handed stainless steel auxiliary bolt, which further enhances the ease of changing the lock's handing. This bolt is not visible and is not shown in all product images, but it is an integral part of the design that supports the lock’s versatility.
The lock is manufactured from 0.095" cold-rolled steel, which provides additional strength and durability. The steel is coated with a corrosion-resistant finish, making it suitable for use in environments where exposure to moisture or harsh conditions is a concern.
For security purposes, the 45H Series includes a fusible link, which melts at a specific temperature to prevent fire-related damage to the lock. Additionally, the lock includes a cylinder security screw that prevents the removal of the cylinder without first removing the interchangeable core. This is especially important when using sectional trims, which require the use of a high-security cylinder such as the 1EK7K4.
The 45H Series is also compatible with a visual indicator option, which displays a padlock icon that opens to indicate an unlocked state and closes and turns red when the lock is engaged. This feature provides users with a clear visual cue of the lock’s status without the need to physically check the lever or thumb turn.
Finally, the lock is available in a variety of finishes, including satin chrome, bright brass, satin nickel, and flat black. This allows the lock to be customized to match the aesthetic of different building designs while maintaining its high level of performance and security.
Technical Specifications and Dimensions
The BEST 45H Series Mortise Lock is available in a range of technical configurations to accommodate different door types and installation requirements. The following specifications outline the key dimensions and design features of the lock.
The lock is designed for doors with a standard thickness of 1-3/4", although thick door configurations are available for doors up to 5" thick. This flexibility ensures that the 45H Series can be used in a wide range of commercial and institutional settings, including office buildings, schools, and healthcare facilities.
The latchbolt is made from solid stainless steel and has a 3/4" throw, which refers to the distance the bolt extends into the strike. The latch is oil-impregnated for anti-friction operation, ensuring smooth and consistent movement over time. It is also reversible, allowing for easy handing changes without the need to open the lock case.
The deadbolt is also constructed from stainless steel and has a 1" throw, providing an additional layer of security by extending further into the strike than the latchbolt. This dual-bolt system enhances the lock’s resistance to forced entry and is particularly useful in high-security applications.
The backset is fixed at 2-3/4", which is the distance from the edge of the door to the center of the latchbolt. This standard backset ensures compatibility with most door frames and strike plates. The lock is also available with a non-handed cylinder retainer, which simplifies the installation process and reduces the need for additional adjustments.
The case dimensions of the 45H Series are 5-7/8" in height, 7/8" in depth, and 4-1/16" in width. These dimensions are designed to fit within standard mortise cutouts, making the lock suitable for both new installations and retrofitting existing door systems.
The faceplate is available in multiple materials, including stainless steel, brass, and bronze, and has dimensions of 8" in height, 1-1/4" in width, and 1/16" in thickness. The faceplate is designed to adjust automatically to the bevel of the door during installation, ensuring a flush fit and minimizing the risk of misalignment.
The lock also includes a dust box made from plastic, which helps to prevent debris and dust from entering the lock mechanism. This feature is particularly useful in environments where cleanliness is a priority, such as laboratories, healthcare facilities, and cleanrooms.
The standard strike number for the 45H Series is 40HST1, and the strike type is an ANSI curved lip strike. The strike has a standard height of 4-7/8" and a width of 1-1/4", which ensures proper alignment with the lock’s latch and deadbolt. A complete strike package is available for purchase separately, and detailed specifications can be found in the manufacturer’s documentation.
The cylinder type is an SFIC (Single Cylinder Mortise) prep less core, which is designed for use with electronic access control systems. The lock is also compatible with a range of cores and cylinders, including the 1CD, 1CDP, 1CDF, and 1CDX drill-resistant cores, as well as the 1EK7K4 high-security cylinder. These options allow for a high level of customization and security, depending on the specific requirements of the installation.
The lever/knob design includes a 3 lever, straight return lever configuration, which provides a secure and ergonomic grip for users. The rose/escutcheon design is an H Rose with a 2-3/4" diameter, which is designed to match the overall aesthetic of the lock while providing additional protection for the lever mechanism.
The lock is also available with a visual indicator, which is an optional feature that provides a clear visual cue of the lock’s status. The indicator includes a padlock icon that opens when the lock is in the unlocked position and closes and turns red when the lock is engaged. This feature is particularly useful in environments where quick identification of door status is important.
The 45H Series is manufactured to meet the standards set by the Builders Hardware Manufacturers Association (BHMA) and is certified under ANSI A156.13, Series 1000, Grade 1 Operational and Strength, Grade 2 Security. To achieve Grade 1 Security, a drill-resistant core must be used with escutcheon trims, and a 1EK7K4 high-security cylinder must be used with sectional trims. This ensures that the lock meets the highest level of security available in the industry.
Installation Procedures and Tools
The installation of the BEST 45H Series Mortise Lock requires careful planning and adherence to the manufacturer’s guidelines to ensure proper fit and function. The lock is designed for ease of installation, with features such as a self-aligning trim mechanism and reversible latch that simplify the process and reduce the need for manual adjustments.
The first step in the installation process is to prepare the door by cutting out the mortise. The standard mortise cutout for the 45H Series is designed to accommodate a 5-7/8" high x 4-1/16" wide x 7/8" deep case. The cutout should be made using a mortise chisel or a router, and it is important to ensure that the cutout is clean and free of debris to allow for smooth installation of the lock components.
Once the mortise is prepared, the trim assembly can be installed. The 45H Series includes a self-aligning trim mechanism, which allows the trim to automatically adjust to the bevel of the door during installation. This feature reduces the need for manual alignment and ensures that the lock fits securely and flush with the surface of the door.
The reversible latch is another key feature that simplifies the installation process. The latch can be rotated 180 degrees without the need to open the lock case, allowing for easy handing changes. This is particularly useful in situations where the door’s swing direction needs to be adjusted after installation.
The case and cover of the 45H Series are secured using four case cover screws, one at each corner of the lock. These screws help to maintain the integrity of the case and prevent it from shifting during installation. The armored front of the lock is also interlocked with the cover to provide additional strength and stability.
After the case and trim are in place, the strike plate should be installed on the door frame. The standard strike for the 45H Series is the 40HST1, which is an ANSI curved lip strike. The strike should be positioned so that it aligns with the latchbolt and deadbolt of the lock. The standard height of the strike is 4-7/8", and the width is 1-1/4". Proper alignment is essential to ensure that the lock functions correctly and securely.
The cylinder and core should also be installed at this stage. The 45H Series is compatible with a range of cores, including the SFIC prep less core, as well as drill-resistant cores such as the 1CD, 1CDP, 1CDF, and 1CDX. These cores provide enhanced security and are suitable for use in high-traffic or high-security environments. The 1EK7K4 high-security cylinder is also an option for use with sectional trims, providing an additional layer of protection against unauthorized access.
The visual indicator is an optional feature that can be added during installation. This indicator includes a padlock icon that opens when the lock is in the unlocked position and closes and turns red when the lock is engaged. The indicator is designed to provide a clear visual cue of the lock’s status without the need to physically check the lever or thumb turn. This feature is particularly useful in environments where quick identification of door status is important.
After all components are installed, the lock should be tested to ensure proper function. This includes checking the movement of the latchbolt and deadbolt, as well as the operation of the lever return spring mechanism and visual indicator (if installed). The lock should be adjusted as needed to ensure smooth operation and proper alignment with the strike plate.
The installation process can vary depending on the door thickness and configuration, as well as the type of trim and cylinder used. The manufacturer provides detailed installation instructions for different configurations, including French drilling, Spanish drilling, and standard drilling methods. These instructions are available in both digital and printed formats and should be followed carefully to ensure a successful installation.
In addition to the installation instructions, the manufacturer also provides service manuals and technical support to assist with any questions or issues that may arise during the installation process. These resources are available through the manufacturer’s website and can be accessed by both professional installers and DIY users.
Compliance and Standards
The BEST 45H Series Mortise Lock is designed to meet the highest standards of performance, durability, and security, as outlined by the Builders Hardware Manufacturers Association (BHMA) and the American National Standards Institute (ANSI). These standards ensure that the lock is suitable for use in a wide range of commercial and institutional applications, including offices, schools, and healthcare facilities.
The 45H Series is certified under ANSI A156.13, Series 1000, Grade 1 Operational and Strength, Grade 2 Security. This certification ensures that the lock meets the requirements for Grade 1 Operational and Strength, which includes rigorous testing for durability, cycle life, and resistance to wear. To achieve Grade 1 Security, a drill-resistant core such as the 1CD, 1CDP, 1CDF, or 1CDX must be used with escutcheon trims, and a 1EK7K4 high-security cylinder must be used with sectional trims. This combination provides the highest level of security available in the industry and is suitable for use in high-risk environments.
The lock is also designed to meet the standards set by the Americans with Disabilities Act (ADA), which requires that door hardware be accessible to individuals with disabilities. The lever/knob design of the 45H Series, which includes a 3 lever, straight return lever configuration, is designed to be easy to grasp and operate, making it suitable for use in public buildings and facilities that require ADA compliance.
In addition to these standards, the 45H Series is also manufactured to meet the ANSI A117.1 section 404.2.6 requirement, which ensures that the lock is accessible and operable with one hand. This feature is particularly important in environments where individuals may have limited mobility or dexterity, such as in healthcare facilities, schools, and government buildings.
The 45H Series is also equipped with a fusible link, which is designed to melt at a specific temperature to prevent fire-related damage to the lock. This feature is important in environments where fire safety is a concern, such as in laboratories, manufacturing facilities, and other high-risk areas.
The lock is manufactured using 0.095" cold-rolled steel, which provides additional strength and durability. The steel is coated with a corrosion-resistant finish, making it suitable for use in environments where exposure to moisture or harsh conditions is a concern. This feature ensures that the lock remains functional and secure over time, even in challenging conditions.
The 45H Series is also available with a visual indicator, which is an optional feature that provides a clear visual cue of the lock’s status. The indicator includes a padlock icon that opens when the lock is in the unlocked position and closes and turns red when the lock is engaged. This feature is particularly useful in environments where quick identification of door status is important.
The manufacturer provides detailed compliance documentation for the 45H Series, including certification reports, technical specifications, and installation instructions. These documents are available through the manufacturer’s website and can be accessed by both professional installers and DIY users. The documentation includes information on compliance with BHMA, ANSI, and ADA standards, as well as technical details on the lock’s design and performance.
In addition to the compliance documentation, the manufacturer also provides customer support and technical assistance to help users with any questions or issues that may arise during the installation or use of the lock. This support includes online resources, customer service, and training materials, which are designed to help users understand the lock’s features and capabilities.
Overall, the BEST 45H Series Mortise Lock is a high-performance, durable, and secure locking solution that is designed to meet the highest standards in the industry. Whether used in a commercial, institutional, or residential setting, the 45H Series provides a reliable and secure way to protect doors and ensure the safety of occupants.
Conclusion
The BEST 45H Series Mortise Lock is a high-performance locking solution engineered for strength, durability, and ease of installation. Its key features include a solid one-piece stainless steel latch, a self-aligning trim mechanism, and a field-reversible case that allows for easy handing changes without opening the lock. The lock is designed to meet the standards set by ANSI A156.13 and is suitable for doors ranging from 1-3/4" to 5" in thickness.
Installation of the 45H Series is supported by detailed instructions for different door configurations, including French, Spanish, and standard drilling methods. The lock’s design accommodates a range of finishes and configurations, allowing it to blend with diverse architectural styles while maintaining robust security and performance.
The 45H Series is manufactured to meet the highest standards of performance and durability, including compliance with BHMA, ANSI, and ADA requirements. It is also equipped with a fusible link and a visual indicator option, enhancing its functionality and accessibility. The lock’s technical specifications, including dimensions, materials, and security features, ensure that it is suitable for use in a wide range of commercial and institutional applications.
Whether used in a commercial, institutional, or residential setting, the 45H Series provides a reliable and secure way to protect doors and ensure the safety of occupants. The manufacturer provides detailed compliance documentation, technical support, and customer service to assist users with any questions or issues that may arise during the installation or use of the lock.