Yale produces commercial grade locks, exit devices, and door closers. Yale mortise locks have easily reversible handing for all of the offered functions. With over 25 levers in many standard finishes, it's easy to match any decor style. Cylindrical locks are available with both grade 1 and grade 2 quality ratings and have multiple functions, including privacy, storeroom, entry, and classroom. Auxiliary locks such as cylindrical and mortise deadbolts and jimmy-proof deadlocks and latchbolts can increase security.
Yale also manufactures exit devices in both the traditional crossbar and flat bar styles. In addition to the traditional exit device types of rim, mortise, surface vertical rod and concealed vertical rod, Yale offers the SquareBolt, which provides improved physical barrier over standard rim locks by resisting credit cards, crowbars, door rattling and shaking.
Yale KeyMark, Exit Device and Mortise Lock Parts Manual