High-Security Cylinder

A lock cylinder featuring patented key control, pick-resistant mechanisms, and drill-resistant materials that provide enhanced protection against unauthorized entry and key duplication. High-security cylinders are specified for sensitive facilities.

Features include patented keyways (keys only available through authorized channels), pick-resistant pin configurations (sidebar mechanisms, rotating elements), and drill-resistant hardened steel pins and inserts. UL 437 listing indicates resistance to common attack methods.

Brands include Medeco (rotating pins), ASSA ABLOY (sidebar technology), Mul-T-Lock (telescoping pins), and BEST (interchangeable core). Key control programs track key issuance and maintain security. Related: cylinder lock, master key system. Shop high-security cylinders.

Related Terms

Mag Hold Open

Knock Down Frame

Transom Closer

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Since 1938, American Doors has supplied commercial doors, frames, and hardware across the U.S., growing from a Houston-based distributor into a multi-market platform serving contractors throughout Texas and Colorado. Family-owned for more than 85 years, we emphasize continuity and craftsmanship, with AHC-certified hardware specialists and experienced estimators delivering fully coordinated Division 8 and Division 10 solutions from specification through installation.

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American Doors is part of Riverbend Industries, a family-owned industrial group focused on building durable, operating businesses.

Riverbend partners with management teams for the long term—investing in people, systems, and manufacturing capability while preserving the culture and accountability that make each business successful.

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