Schlage ND70BD Lat 643E Grade 1 Classroom Lock Aged Bronze

Product Description

The SCHLAGE ND70BD LAT 643E is a Grade 1 classroom-function lever lockset designed for institutional and commercial door hardware applications. It features the Latitude lever design and is prepared for Small Format Interchangeable Core (SFIC) installation with no core included. The 643E aged bronze finish provides a durable, professional appearance suited to educational and commercial environments. The non-handed design simplifies installation on doors of any swing direction. This lockset is specified and installed by commercial locksmiths and institutional facilities maintenance professionals.

This lockset is intended for classroom security applications in schools, universities, and other institutional or commercial facilities. The classroom function keeps the exterior lever locked at all times, allowing entry only by key, while the interior lever remains free for egress. The SFIC prep allows facilities using a Small Format Interchangeable Core keying system to install their existing core without additional machining. The non-handed design suits both left-hand and right-hand door preparations without modification.

Key Features

• Grade 1 heavy-duty commercial rating for high-traffic institutional use
• Classroom function: exterior lever locked by default, interior lever always free for egress
• SFIC prep less core: ready for Small Format Interchangeable Core installation
• Latitude lever design in 643E aged bronze finish
• Non-handed configuration installs on left-hand or right-hand doors without modification

Compatibility

Designed as an OEM-style replacement or new-installation Grade 1 cylindrical lockset for commercial and institutional doors prepared for standard cylindrical lock boring with SFIC core preparation.

Installation Notes

Installation should be performed by a licensed commercial locksmith or qualified facilities technician familiar with cylindrical lockset procedures. Verify that the door preparation matches the required cylindrical boring and latch backset dimensions before installation. Ensure the door is secured open and any access control wiring is de-energized before beginning work. Core installation requires a control key specific to the SFIC system in use and should follow the core manufacturer's procedures.