High Security Restricted Keying System. Effective security of your premises depends largely on control of access to keys. This system achieves a very high level of key control while also providing increased physical security over basic restricted keying systems.
Legally Protected Keying System – Lockwood Twin™ is afforded two independent forms of legal protection, to best ensure protection against unlawful manufacture and distribution of key blanks and cut keys.
Patents – Strong international patents protect the cylinder lock and key combination, and keyblank of Lockwood Twin. Patent protection ensures exclusivity by legally barring the sale of unauthorised manufactured or imported cylinders, keys or keyblanks. Lockwood Twin is fully patent protected.