Security Yale M8773 Series mortise door handle-sets are forged from solid brass. Comprising an ANSI grade 2 mortise lock case with latchbolt/deadbolt functions, these door handle-sets have long lifecycles than exceed 800,000 uses, making them the perfect choice for exceptional high security. High quality PVD finish of Yale door handle-set series provide lifetime protection from corrosion and tarnish too. Style Yale mortise door handle-sets are designed in a variety of styles. The classic styles make a bold statement to any door, while the elegant styles enhance the mood of your home, evoking feelings from the modern to the dramatic.