Ilco 7161TK2 Thumbturn Mortise Cylinder - 1"Length

The Ilco 7161TK2 Thumbturn Mortise Cylinder is a professional-grade, 1-inch architectural component engineered for doors that require keyless locking and unlocking from the interior. Machined from solid brass bar stock, this cylinder provides a rugged and corrosion-resistant security solution for aluminum storefront doors, glass entryways, and commercial office suites. By integrating a thumbturn instead of a keyed entry, facility managers can satisfy Life Safety codes by providing occupants with a simple, immediate way to secure or release a door without searching for a key.

This model features the industry-standard Adams Rite Cam (863A), making it a perfect retrofit solution for the most common narrow-stile storefront locks. The 1-inch length is specifically designed to sit flush or near-flush with the door's surface or escutcheon, providing a clean, professional appearance. Available in high-traffic finishes like US26D (Satin Chrome), US3 (Bright Brass), and Duracolor Brown Aluminum (DU), the 7161TK2 allows for seamless visual integration with existing door hardware across retail, healthcare, and educational campuses.

Thumbturn Mechanical Function & ADA Summary

The Thumbturn Mortise Function serves as a vital mechanical interface for interior door control, balancing convenience with perimeter protection.

• Keyless Interior Operation: The 7161TK2 allows users to throw or retract a deadbolt or latchbolt simply by rotating the knob. This is the primary solution for public-facing businesses that must lock doors at the end of the day from the inside.
• Adams Rite Compatibility: Equipped with an installed AR Cam, this cylinder is purpose-built to operate the MS (Maximum Security) deadlocks and deadlatches found on narrow-stile aluminum doors.
• Ergonomic Design: The "TK" (Turn Knob) profile is designed for a comfortable grip, facilitating easy operation for all users. While this standard model is highly accessible, specialized "ADA" versions are often used where stricter local leverage requirements are enforced.
  
• Solid Brass Longevity: Unlike die-cast alternatives, the solid brass construction ensures the threads will not strip during installation and the internal mechanics will not seize due to moisture or humidity.

Technical Specifications

Engineered Solutions for Commercial Access Control

The Ilco 7161TK2 addresses the specific technical and logistical needs of high-traffic commercial infrastructure:

• Eliminate Interior Key Requirements: In emergency situations, requiring a key to exit is a major safety hazard. This thumbturn cylinder is the standard solution for ensuring that a door can be unlocked instantly for egress while remaining secure from exterior entry.
• Storefront Lock Integration: For retail owners using Adams Rite style locks, this cylinder provides a precision-fit replacement for worn or damaged thumbturns. The factory-installed cam ensures the timing of the bolt throw is perfect every time.
• Corrosion Resistance for Exterior Doors: Because the cylinder is made of solid brass, it is the ideal choice for exterior storefronts exposed to rain, salt air, and temperature swings. It naturally resists the oxidation that causes cheaper zinc cylinders to fail.
  
• Symmetry and Style: With three distinct architectural finishes, this cylinder allows for a consistent look across an entire facility. Whether matching a dark bronze anodized frame or a bright brass office door, the 7161TK2 maintains the building's aesthetic integrity.
• Maintenance-Free Durability: The lack of pins, springs, and tumblers means there is virtually nothing to wear out or "re-key." Once installed, the Ilco Thumbturn serves as a permanent, reliable mechanical control for years of service.