term lockset is generally taken to mean all the hardware associated with the mounting and operating of doorknobs with or without keyed locking mechanisms keyed locking mechanisms is taken to mean devices which are designed to be operated by specially coded keys this coding is usually physical steps ground into the key in some cases it can be magnetic or electronic the side of the door 10 shown is the interior with the exterior part of the lockset 14 having a keyed locking mechanism as was previously described not shown a few inches above the lockset 14 is a lockset generally referred to as a deadbolt lockset 20 with a handle 21 mounted on the interior side of the door 10 the exterior part of the deadbolt lockset 20 provides a keyed locking mechanism the interior and exterior designations for sides of a door are for convenience of explanation only both sides of the door may be within or outside of a building in some cases the arrow 22 illustrates the direction of rotation which must be imparted to the handle 21 to cause the deadbolt lockset to be moved from the unlocked position to the locked position in like manner if the handle 21 is rotated oppositely to the arrow 22 the mechanism will be moved from the locked position to the unlocked position locked in this context means that a locking bolt 23 in the door 10 is moved into a receptacle 24 in the door jam 12 unlocked is taken to mean that the mechanism within the deadbolt lockset 20 moves.