Mul-T-Lock designs, develops and manufactures a wide selection of innovative architectural cylinders

Mechanical cylinders that address the evolving architectural and security needs of institutions, businesses and homeowners worldwide.

Special cylinder applications and features such as the 3-in-1, the FleX Control (Temporary Lock Out) cylinder and the Construction Master cylinder provide users security and flexibility. For applications ranging from doors and through to cabinets, Mul-T-Lock has a cylinder solution for all your security applications. Meeting the world’s most stringent international standards and dedicated to making patented key control the highest priority, Mul-T-Lock cylinders have been chosen by millions of customers in nearly 100 countries who are seeking the very best high-security solution.