9K37IN-D-S3 Intruder Cylindrical Lock, 14 or 15 Lever, D Rose, SFIC Prep

Best 9K37IN-D-S3 Intruder Cylindrical Lock, 14 or 15 Lever, D Rose, (SFIC) Small Format Interchangeable Core Prep, Less Core, S3 4-7/8" ANSI Strike

The 9K Lock with Intruder Function Can Secure Classroom Doors Simply, Safely and Reliably.

In an emergency, locking classroom doors quickly from the inside is a critical step in protecting children and staff. The BEST 9K lock is a classroom lock with a visual indicator that shows which way to turn the key to ensure the door is securely locked. This simple, yet significant, marker can make a big difference when every minute counts. Mechanical locks like the 9K are an integral part of a comprehensive security strategy, and are also a cost-effective answer to the ongoing demand to make schools and classrooms more secure.

Intruder (IN) - ANSI Function F11

Visual Lockdown Indicator - Easy-to-understand marking on classroom side of lock shows which way to turn the key to lock the door from the inside of the classroom.

Pre-assembled heavy-duty chassis - Out of the box and onto the door, the 9K offers quick and easy installation.

Cast construction lock hub - Protects the lock’s critical components from everyday use and abuse.

Hardened steel through-bolt studs - Deliver maximum lever torque resistance that stands up to the hardiest hands.

Proven quality - Tested to exceed 10 times the BHMA Grade 1 criteria by UL.