David Bolton Classroom Security Locksets: How Lockdown Function Changes the Hardware Decision Before the Schedule Ships Why Classroom Door Hardware Is a Different Spec Category This guide is for school facility managers, educational construction specifiers, and commercial contractors who need to understand how classroo... Grade 1 locks classroom security lockset lockdown hardware mortise lockset school door hardware Sep 10, 2026 Our Blog
David Bolton Classroom Lockdown Function Timing: Why a Mis-Timed Cylinder Defeats the Whole Lockdown Strategy What This Article Covers -- and Who It Helps This post explains what cylinder timing means on a classroom-function lockset, why a timing error causes the lock to fail precisely when a lockdown is call... classroom security cylindrical locks lock function lockdown hardware school door hardware Jun 28, 2026 Our Blog
