In a world buzzing with smart locks, apps, and biometrics, it’s easy to overlook the silent guardian that’s stood the test of time: the high-security mechanical key.
These aren’t your average keys you can duplicate at the hardware store. They’re precision-engineered, tamper-resistant, and copy-proof — built to protect what matters most. Whether you’re securing a hospital, school, government facility, or multi-tenant building, high-security mechanical keys deliver one thing digital systems often can’t: uncompromising reliability.
Because of their patented design and strict key control policies, these keys must be obtained and managed through the same authorized provider over time, ensuring long-term security and accountability.
That’s where we come in. As a trusted, authorized provider, Harry’s delivers the consistent service, expert guidance, and long-term support you need to keep your key system secure, today and into the future.
Key Control You Can Count On
High-security keys come with patent protection and strict duplication authorization. That means no unauthorized copies floating around. Every key is tracked, registered, and distributed only with your say-so.
No Batteries, No Wi-Fi, No Problem
They’re immune to power outages, cyber hacks, or glitches. In high-risk environments, a key that works 100% of the time isn’t optional—it’s essential.
Built Tough Against Threats
Unlike standard keys, high-security keys feature complex internal mechanisms designed to resist picking, bumping, and drilling. Think of them as the “bank vault” of keys.
Perfect for Multi-Level Access
Need one master key for managers and limited access for staff? High-security systems like Medeco X4, M4 and Schlage Primus offer precision master keying that lets you customize access.
Medeco
A modern marvel of mechanical engineering, the Medeco X4 & M4 offers utility-grade protection in a cost-effective package. With over 2,000 unique codes and patented key control until 2030, it’s a go-to for large institutions and property managers. The best part? One key can work across padlocks, cabinets, doors, and more—unifying security while locking out risks.
- Grade 1 certified for high security and durability
- Patented key control prevents unauthorized duplication
- Supports large-scale master key systems
- One-key convenience across various cylinder formats.
- Custom key coining and retrofit compatibility enhance control and flexibility
- Designed for retrofitting—installs easily into existing hardware without the need for modification
- Solid brass construction ensures long-term strength
- M4 has a moveable pin in the key, which prevents 3-d printing
The Medeco X4 and M4 have been tested to meet the highest industry standards, delivering the strength, flexibility, and key control trusted by professionals. Both are ANSI/BHMA A156.5 Grade 1 certified, ensuring top-tier performance for commercial and institutional applications. Backed by a U.S. utility patent valid through 2030, the Medeco X4 provides strong protection against unauthorized key duplication and is engineered for reliability in demanding commercial environments. The Medeco M4, protected by a utility patent expected to remain valid through 2040, offers advanced security features and patented key control, making it ideal for high-security institutional applications.
Schlage Primus
The Schlage Primus systems brings a dual-locking mechanism to the table. It features both side and pin tumblers, which means it’s significantly harder to pick or bump. Combined with tight key duplication restrictions, it’s a favorite for enterprises that demand control without compromise.
- Grade 1 certified for superior security and durability
- Patented key control prevents unauthorized duplication
- Supports complex master key systems with expanded keying options
- Sidebar mechanism works with finger pins and the pin-tumbler system to add high-security protection against unauthorized key duplication and manipulation.
- One-key convenience across a wide range of cylinder formats
- Custom key coining and retrofit compatibility increase control and flexibility
- Easily retrofits into existing hardware with no need for door modifications
- Solid brass components ensure long-term reliability and strength
- Compatible with electronic access control through Primus XP or Everest systems
Schlage Primus is engineered to meet ANSI/BHMA A156.5 Grade 1 standards and is trusted for use in commercial, institutional, and government facilities. Featuring a U.S. utility patent that offers protection against unauthorized duplication, the Primus system combines strength, flexibility, and advanced key control—making it a trusted solution for demanding security applications. The Schlage Primus is protected by the Everest 29 patent, which remains in effect until 2029.
