Secure your entryway with this Grade 2 cylindrical knob lock, designed for reliable access control in residential and light commercial applications. The MK11-BD model features a durable construction that withstands frequent use while maintaining smooth operation. This entrance knob lock comes with both an interior thumb turn for convenient egress and a key cylinder for exterior access. Perfect for exterior doors where keyed entry is required, this lock provides a balance of security and functionality. The classic knob design offers comfortable grip and easy operation. Installation is straightforward with standard door preparations, making it suitable for new installations or replacements. The lock's mechanical components are engineered for long-lasting performance in various weather conditions. Remember to check your door specifications before purchasing to ensure proper fit.