Ilco 7011 TK9 US26D Thumbturn Rim Cylinder - 1-1/8" Length 

The Ilco 7011 TK9 US26D is a professional-grade Thumbturn Rim Cylinder designed to provide effortless, keyless operation for surface-mounted locking hardware. Machined from solid brass bar stock and finished in US26D Satin Chrome, this cylinder is a premier security and accessibility solution for commercial storefronts, office partitions, and back-of-house exit doors. It allows users to engage or retract a deadbolt or exit device latch from the interior without the need for a key, ensuring that your facility remains functional, secure, and compliant with standard egress protocols.

Engineered for universal compatibility, the 7011 TK9 is a high-performance retrofit solution that fits nearly all major brands of rim exit devices and surface deadbolts. The package is a complete "out-of-the-box" install, furnished with a 1/8" trim ring, a heavy-duty mounting plate, and break-off mounting screws that can be customized to fit door thicknesses ranging from 1-3/8" to 2-1/4". Whether you are replacing a damaged interior turn or upgrading a keyed entry to a thumbturn for employee convenience, this solid brass cylinder provides the mechanical reliability required for high-traffic environments.

Thumbturn Rim Function & Operational Summary

The Thumbturn Rim Function is the industry standard for providing manual, interior-side control of a locking mechanism.

• Keyless Mechanical Control: The 7011 TK9 utilizes a horizontal or vertical tailpiece (depending on installation) to actuate the internal mechanism of a rim lock or panic bar. This is the ideal solution for doors that must be locked or unlocked manually from the inside during business hours.
  
• Universal Tailpiece Design: The extra-long, break-off tailpiece ensures that the cylinder can reach the internal drive of the lock even on thick, insulated, or fire-rated commercial doors.
• Ergonomic Accessibility: The TK9 thumbturn provides a comfortable grip, making it easier for staff to operate the hardware compared to smaller, lower-profile alternatives.
• Solid Brass Infrastructure: Unlike zinc die-cast cylinders that can snap under torque, the solid brass construction ensures the tailpiece remains securely anchored and the housing threads remain intact over years of constant use.

Technical Specifications

Engineered Solutions for Facility Access

The Ilco 7011 TK9 addresses common logistical and mechanical challenges in commercial door management:

• Eliminate Interior Key Dependency: Using a thumbturn on the interior of a door eliminates the risk of occupants being "locked in" without a key during an emergency. This is a critical Life Safety solution for non-fire-rated secondary exits.
• Seamless Retrofit Compatibility: Designed to match the footprint of Von Duprin, Sargent, and Falcon rim cylinders, the 7011 TK9 can be installed in minutes. The included 1/8" trim ring ensures the cylinder sits flush against the door face for a professional look.
• Corrosion-Resistant Performance: The combination of a solid brass body and a Satin Chrome finish makes this the perfect choice for exterior storefronts. It resists the pitting and seizing common in coastal or high-humidity regions.
• Customizable Installation: The break-off mounting screws allow a single SKU to be used across various door types. Maintenance teams can simply "snap" the screws to the required length for the specific door thickness on-site, reducing the need for specialized hardware inventory.
  
• Simplified Maintenance: Because there are no pins or springs to wear out, the thumbturn cylinder is a low-maintenance solution that provides consistent mechanical feedback and years of trouble-free operation.