A specific type of residential door hardware, typically purchased from a large home improvement retailer, offers a mechanism for opening and closing a door, coupled with a locking function. This product generally consists of an exterior handle, an interior lever or knob, and an associated latching or locking mechanism. For example, one might select a keyed entry version for an exterior door or a passage version for a closet.
The availability of these products through major retailers provides accessibility and competitive pricing for homeowners. Their widespread use is due to their relative ease of installation, diverse style options, and varying levels of security. Historically, this type of hardware has evolved from simple latches to more sophisticated locking systems, reflecting advancements in security and manufacturing processes.