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BEST 9K Series Locks - Grade 1
Quick installation, proven reliability and enhanced safety all make the 9K the grade 1 cylindrical lock of choice for many. But its wide compatibility with most large format interchangeable cores, regardless of brand, make it a legend. Whether you want to upgrade old hardware or fit out a new facility, the 9K is a great match.
Now celebrating an incredible 100 million test cycles, the BEST 9K lock continues to set the standard for endurance and reliability. This achievement highlights its unmatched durability, making the 9K the preferred choice for high-traffic facilities that demand security solutions they can trust over time.
Frequently Asked Questions
What makes BEST mortise locks high-security?
BEST mortise locks feature patented interchangeable cores with restricted keyways preventing unauthorized duplication, allowing instant security updates by changing cores in seconds without replacing hardware.
When should I specify BEST mortise locks?
BEST mortise locks are ideal for government facilities, healthcare, universities, corporate campuses, and any institution requiring superior key control, audit trails, and the ability to instantly rekey after security breaches.
Can BEST cores be changed without door access?
Yes, BEST interchangeable cores can be removed and replaced using a control key in seconds from either side of the door without removing lockset or accessing interior.
Are BEST mortise locks compatible with access control?
National Lock Supply stocks electrified BEST mortise locks integrating with electronic access control systems while maintaining BEST's mechanical key control and interchangeable core benefits.
What keying systems work with BEST mortise locks?
BEST mortise locks use BEST's patented interchangeable core system with multiple keyway options. National Lock Supply provides complete keying services for BEST installations and expansions.
How durable are BEST mortise locks?
BEST mortise locks exceed Grade 1 ANSI standards with reinforced construction, heavy-duty internal components, and cycle testing ensuring long-term performance in demanding applications.