Schlage ND78JD Tlr 626 Classroom Security Cylindrical Lock

Product Description

The SCHLAGE ND78JD TLR 626 is a Grade 1 cylindrical lock designed for classroom security applications requiring 180-degree lockdown capability. It features a tubular lever trim and ships less core, configured for Schlage Full Size Interchangeable Core (FSIC) prep. The satin chrome finish (626) provides a clean, professional appearance suited to institutional environments. This lock is non-handed, meaning it installs on either left- or right-hand doors without modification. Licensed locksmiths, security integrators, and commercial door hardware installers are the typical tradespeople who specify and install this unit.

This lock is built for K-12 schools, universities, government buildings, and other institutional facilities where rapid room lockdown is required. The 180-degree lockdown function allows staff to secure a room from the inside without exposing themselves to a corridor. The FSIC prep accepts a Schlage Full Size Interchangeable Core, which enables rekeying without disassembling the lock body - a common requirement in large facilities with master key systems. The unit is sold less core, so the appropriate core must be ordered separately to complete the installation.

Key Features

• Grade 1 ANSI/BHMA rating for heavy-duty commercial and institutional duty cycles
• 180-degree classroom security lockdown function operable from inside the room
• Schlage FSIC prep accepts Full Size Interchangeable Core for keyless rekeying
• Sold less core - compatible core ordered separately
• Non-handed design installs on left- or right-hand doors without field modification
• Satin chrome (626) finish for institutional aesthetics and corrosion resistance

Compatibility

Designed as an OEM-style replacement or new-installation cylindrical lock for commercial and institutional doors prepped for Schlage Full Size Interchangeable Core (FSIC) cylinders. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a licensed locksmith or qualified door hardware technician familiar with ANSI cylindrical lock prep standards. Confirm the door prep matches the required backset and cross-bore dimensions before installation. The core must be installed separately after the lock body is mounted - do not operate the lock in a secured facility without a properly functioning core in place. Follow applicable building codes and facility security protocols when integrating this lock into an access control or master key system.