Medeco, it’s the first to create a whole new category of high security locks. They created unique principle of angled key cuts and rotating pin tumblers and it resulted into universal pickproof locks. They also added hardened steel at strategic points to resists drilling and physical attack. These Quality features have earned their locks a UL 437 Listing, also they are certified by ANSI & BHMA. Their product lists consist of Rim and Mortise Cylinders, Knob & Lever Cylinders, Interchangeable Core Cylinders, Cam & Switch Locks, Deadbolts, Residential Locksets, Padlocks, International Cylinders, and Special Application Locks.