The Schlage ND80PD-RHO-626 series of Rhodes heavy-duty commercial cylindrical lock very easily stand up to constant use and abuse while keeping people and property safe. Our ND-Series locks have an ANSI Grade 1 rating and come in a choice of styles and finishes that fit your building's design. Every Schlage lock and deadbolt undergoes intensive testing to determine its ANSI grade level as we believe the safety and security of your buildings is something that should be taken very seriously. Schlage lock ND Series locks are the toughest cylindrical lock that gives you premium durability and performance in a lock which is easy to service and maintain.