Different Types of Door Locks

• 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.

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.

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.

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. 
  
   

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.

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.

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.

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.

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.

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