We have been meticulous designers, painstaking engineers, and proud craftsmen.Schlage Commercial ND73PTLR626 ND Series Corridor C Keyway Tubular 13-247 Latch 10-025 Strike In homes, public buildings, and the workplace, at the end of the day, Schlage stands for one thing: strong. From durable mechanical locks to comprehensive electronic access control solutions and biometrics, Schlage provides protection at critical moments–when property and personal security are at stake..