Consider how your front door hardware is confronted with countless turns of the lock – latching it, unlatching and turning it again – as you and your family come and go about your lives, welcoming friends and acquaintances into your home. The deadbolt on your entry door must endure repeated exposures to:
Or, think about the lock and latch hardware of your interior doors. Busy lives mean that doorknobs are sometimes used as a convenient place to hang:
Also keep in mind that some rooms, such as a shared bathroom, get more use than others and that family members seeking privacy can occasionally close a door quickly, so that it slams shut. Making sure that the lock continues to work, does not jam or get stuck, is what the durability rating is all about.