David Bolton Dead-Latch vs Spring-Latch Cylindrical Locksets: Which One Belongs on Your Opening? The Latch Mechanism Behind Every Cylindrical Lockset Matters More Than Most Specs Acknowledge When a contractor, facility manager, or architect orders a cylindrical lockset, the conversation usually c... commercial door hardware cylindrical locksets door security fire door compliance latch mechanisms Jun 26, 2026 Our Blog
David Bolton Outswing Doors in Occupied Buildings: Why the NRP Hinge Detail Gets Skipped — and What Happens Next The Security Gap Nobody Argues About Until It Is Too Late This article is for contractors finishing punch lists, facility managers reviewing door schedules during a renovation, and architects specifyi... NRP hinges commercial hardware door security hinges outswing doors Apr 23, 2026 Our Blog
David Bolton NRP Hinges on Outswing Doors: When the Pin Is the Vulnerability Why the Hinge Pin Becomes a Target on Outswing Doors This guide explains non-removable pin (NRP) hinges: what they are, why outswing doors require them, and how to specify or replace them correctly. I... NRP hardware commercial door hardware door security hinges outswing doors Apr 23, 2026 Our Blog
