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Different Types of Door Locks

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Passage Lockset

 

  • An interior lockset used inside the home in hallways or closets between rooms where privacy is not important.
  • Has two, non-locking knobs, one on each side of the door. Some models use levers instead of knobs.
  • Available in a wide variety of styles and finishes.

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    Privacy Lockset

     

  • An interior lockset.
  • Designed for privacy rather than for security
  • Has a locking button on the inside knob but no key device on the outside knob.
  • Can be either a knob or a lever.
  • In an emergency, the lock can be opened from the outside by inserting a narrow object through the small hole in the outside knob and either depressing or turning the locking mechanism inside, depending on the type of lock. "
  • Available in a wide variety of styles and finishes.

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    Dummy Knob

     

  • Used only for decoration or applications that do not need a latch
  • Has no latching mechanism and does not turn.
  • Available in a wide variety of styles and finishes.

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    Entry Lockset

     

  • Two doorknobs that can be locked from both the inside and the outside.
  • One type locks from the inside by turning or depressing a small button, while a key must unlock the outside knob.
  • Some models must be locked with a key on both the inside and outside.
  • In other models, only the inside knob can lock or unlock both sides of the set.
  • A medium security entrance-door lock.
  • A quality feature on entry locksets is a deadlatch.

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    Deadbolt Lock

     

  • Provides maximum security on a door.
  • Called “dead” because there are no springs to operate the bolt. It is only operated manually with a key or a thumb turn from the inside.
  • The bolt locks the door to the frame and helps prevent someone from prying the door open.
  • The throw is the length the bolt is extended from the lock housing. The industry standard is a 1” throw.
  • Locks are designed to fit specific size holes and backsets. Backset refers to the distance between the edge of the door and the center of the handle.
  • A single-cylinder deadbolt is operated with a key from the outside and with a turn button on the inside. It is used mostly with solid metal or wood doors.
  • A double-cylinder deadbolt is operated with a key on both the inside and outside. It is best used on a door with glass in or around them as the style prevents someone from breaking the glass, reaching in and unlocking the door.
  • Double-cylinder deadbolts can pose a danger during an emergency. If the key is missing or not readily available, people could be trapped inside a locked house. In some areas, codes may not permit this style of deadbolt.

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    Surface-Mounted Deadbolt

     

  • Squarish in shape and mounted on the surface of the inside of the door.
  • The bolt may be turned with a key or a turn knob.
  • Instead of sliding into the door frame, the bolt slides into a surface-mounted strike.

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    Mortise Lock

     

  • Consists of a flat, rectangular box that fits into a recess in the door from its edge. Also includes two faceplates that include the knobs and keyholes.
  • Available in right- or left-handed styles.
  • Has a pin tumbler locking mechanism in a cylinder.
  • Latch operates from either side except when the outside knob is locked.
  • Deadbolt operates by a turn of the inside knob.
  • A key from the outside operates both the deadbolt and latchbolt.
  • Used on many types of doors, from heavy entrance doors to apartment buildings and residential doors.

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    Night Latch

     

  • Installed on the inside surface of the door.
  • Has an automatic locking feature. The large, spring loaded latch automatically locks whenever the door is closed.
  • For light security and usually used in combination with another lock.

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    Keyless Entry System

     

  • For advanced home security and convenience
  • Audio and visual indicators confirm the lockset is activated.
  • Audio and visual indicators confirm the lockset is activated.
  • Some models will sound an alarm after the incorrect code has been entered more than three consecutive times.
  • Anti-theft rolling code feature ensures the same code is never used twice.
  • Some systems are compatible with some garage door openers so the homeowner only needs one remote.

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    Handleset

     

  • Usually an entry set that combines a lockset with a deadbolt, the deadbolt is located just above the knob or handle. Can be a one- or two-piece unit.
  • Available with both single- and double-cylinder deadbolts. Styles of locksets also will vary widely.
  • Available in a variety of styles and finishes

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    Courtesy of NRHA.org
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