Keying Systems /global/scaled/2453x866x563x0x1800x640/Other-multlockCOM-Pics-New Look-For Business-Patented Key Platforms-For Business banner.jpg Mul-T-Lock develops and designs keying systems to meet the evolving needs of your business. Our patented keying systems prioritize high-security and technological innovation, for secure and reliable locking solutions. Keying Options Dedicated to satisfying customers’ needs, Mul-T-Lock offers many convenient and customizable keying options. These options range from traditional to innovative and are designed to offer ease-of-use and full control over locking systems. The simplest and most common keying option, Keyed Different locking systems, is comprised of multiple cylinders and keys. A single key can only unlock each cylinder and no key can unlock more than one cylinder, affording you maximum access control and security over your assets.