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what are the names of door lock parts

by Miss Madge Rau MD Published 4 years ago Updated 3 years ago

Parts of a Door Lock

  1. Knobs and Handles. The common door lock will have two knobs or handles—one on the inside of the door and one on the outside.
  2. Rosette. The rose or rosette is typically a round plate that serves two functions. ...
  3. Lock Cylinder. ...
  4. Spindle. ...
  5. Latch Assembly and Spring Bolt. ...
  6. Deadlocking Plunger. ...
  7. Strike Plate. ...

Parts of a door lock
  • Trim: Sometimes called a rose, the trim is a decorative plate attached to the door under the knob or lever. ...
  • Deadbolt: ...
  • Escutcheon: ...
  • Faceplate. ...
  • Backplate: ...
  • Latch bolt: ...
  • Spindle: ...
  • Strike plate:
May 20, 2019

Full Answer

What are the parts of a door lock called?

What are the parts of a door lock called?

  • Trim: Sometimes called a rose, the trim is a decorative plate attached to the door under the knob or lever.
  • Deadbolt:
  • Escutcheon:
  • Faceplate.
  • Backplate:
  • Latch bolt:
  • Spindle:
  • Strike plate:

What are the names of the door parts?

  • Decorative nails attached to a door that are meant to be seen. ...
  • A hinge type that has ball bearings between the hinge knuckles to reduce friction and increase longevity. ...
  • A lock type that utilizes only the bore hole to be installed. ...
  • A bolt used on a non active door to keep it stationary. ...

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How to make a smart door lock?

  • Wyze smart lock: Lock or unlock your door from anywhere using the Wyze app. ...
  • Certified for Humans – Smart home made easy for non-experts. ...
  • Simple sharing: Wyze Lock lets you easily share access to your home with friends, family, contractors, dog walkers, and ...

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What are the different types of door lock?

Types of Door Locks

  1. Doorknob Locks. Doorknob locks are, perhaps, the most common type of lock you’ll see on homes, especially on inner doors, like bathrooms and bedrooms.
  2. Handlesets. Handleset locks have a handle on the external side and either a keyed opening or twist knob on the internal side with which to lock it.
  3. Hand Levers. ...
  4. Deadbolts. ...
  5. Barrel Bolt. ...
  6. Chain Lock. ...
  7. Cam Locks. ...

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What type of locks are used in residential homes?

Traditional and electronic locks. Many residential homes, apartments, schools, libraries, small commercial buildings and other similar spaces still use traditional key-and-doorknob locks for both interior and exterior doors. Traditional locks, also known as mechanical locks, while still popular today, are not the only type of lock available.

What is a traditional lock?

Traditional locks, also known as mechanical locks, while still popular today, are not the only type of lock available. Homeowners and business owners can also choose from different types of electronic locks, many of which are widely available and affordable. These types of locks use electricity and small motorized components instead ...

What is the plate behind a door?

The plate behind the door can refer to two separate pieces of metal. The first option is the strike plate, which is discussed above. The strike plate keeps the bolt in place when it is locked. When it closes, the latch strikes the plate and holds it closed. The other option could be the rosette.

What is the bolt on a door?

The Bolt: Also called the latch, the bolt engages the inside of the door. There is a piece of metal that extends from the door into the frame itself. This bolt is used to hold it closed. The Box: The bolt extends from the cylinder into a hole that is designed to fit the bolt perfectly. This is called the box.

What type of technology does a lock use?

Recently, lock manufacturers have taken to incorporating smart technology into their electronic locks. Smartphone use or voice control are more advanced ways of opening a door that omit the need for a key.

What is the keyhole on a deadbolt?

The Keyhole: The Keyhole itself is where the key inserts, allowing users to operate the lock. These are a few of the most important parts of the deadbolt. Each part plays a role in how the locking mechanism works.

What is the second part of a key called?

This slides into the lock itself. Locks are shaped to distinguish between various keys so that it only unlocks for the right key. The second part of the key is called the bow.

How many parts are in a door lock?

Though there are slight differences depending on the lock's manufacturer, there are three primary parts of a door lock to keep in mind when learning about the way they work. Understanding the function of each part can help you troubleshoot problems with a lock on your own, which might save you a call to your local locksmith if trouble comes around.

What type of lock does a door lock use?

Generally, door locks will either use a traditional deadbolt – a piece of metal that extends and holds the door shut when the lock body is turned – or a spring latch, a bolt that uses a spring clip to automatically lock the door whenever it closes.

What is the latch on a door?

Connected to and controlled by the lock body, the latch or deadbolt is the part of the door lock that holds the door in place when it's locked. When the lock body turns, the latch or deadbolt moves to either allow or stop the door from being opened.

What is a lock body?

The lock body, or lock cylinder, is the core of a door lock. The lock body turns to engage or disengage the lock's bolt or latch when the appropriate key is used. In a mechanical lock, the lock body uses a series of spring-loaded pins to allow or stop the turning. The combination of pins that need to be pushed to turn the lock is unique ...

What does it mean when a key is inserted?

When the key is inserted, it allows the lock body to turn. Advertisement. In an electronic lock, small motorized components controlled by the keypad, scanner or wireless signal reader control the bolt or latch – sometimes alongside a mechanical lock's pins and sometimes replacing the pin system entirely. When the appropriate code ...

What is the anatomy of a door lock?

The Anatomy of a Door Lock. Every door lock has both internal and external components. Door handle or door knob parts – in addition to the keypad or scanner on an electronic lock – can be considered external, while the internal parts are composed of everything hidden inside the door and everything behind the key slot.

What is the final lock component?

The space inside the door's frame and the metal plate used to reinforce that space create a secure location for the bolt or latch. Known as the box and strike plate , this final lock component guides and secures the lock's bolt to keep the door secure and shut and prevents the locked door from simply being ripped open.

What is the latch on a door?

The door latch. Often called a bolt, the latch is a piece of metal that extends out into the door jamb through the strike plate. The lock component engages with the bolt inside the entryway and holds the door shut. You can find two fundamental types of locks:

What is a lock cylinder?

The lock cylinders are essential lock door hardware parts since this is where you insert your key. If an intruder uses the wrong key, the door won’t open.

What is the difference between a deadbolt and a spring latch?

A big difference between deadbolts and spring latches is the first don’t have doorknobs or handles and the second does.

What to do if you have an issue with your door lock?

Because the lock on your door is the most or one of the best security deterrents that protect your property, valuables, and your family from intruders. When you have an issue with the door lock, the best thing you could do is call a specialist locksmith Orlando who has the essential knowledge and ability to deal with any issue that may emerge.

What is electronic lock?

Electronic locks are new and great alternatives available for homeowners and business owners. Electronic locks work differently than traditional spring or deadbolt locks. They work with magnets and small electric-powered motors that the operator can activate to open and close.

What happens when you insert a key into a cylinder?

When you insert the right key into the cylinder, the uneven edge pushes the pins upward to different heights. When the operator uses the right key, all the pins move into its right position and height for the lock and the door unlocks. If the wrong key gets used, the key won’t turn inside the cylinder.

Can you open a door with a deadbolt without a key?

So, it’s more difficult to open a door with a deadbolt without the right key.

The Cylinder

The cylinder is the main part of the lock. It is laid with pins that are unique to every set of lock and keys, and will only be pushed into alignment when the correct key with properly corresponding ridges has been inserted, which will then allow the cylinder to spin, moving the bolt and thus unlocking the door.

The Bolts

Bolts are what keeps a locked door from opening by latching into the doorframe. It is the part of the lock that protrudes from the side of the door when the door is locked. There are many different types of bolts, the most common of which are mentioned herein:

The Spring Bolt

Spring bolts are made so that they are always locked, and when unlocked and left alone, the bolt springs back into its initial position of being locked. This means that the door locks automatically, without the need for a key.

The Deadbolt

Deadbolts can only be locked or unlocked with the key, regardless if you’re inside or outside. They are usually considered safer, due to their mechanism not allowing the bolt to be forced back in without the correct key, something which can potentially happen with spring locks.

The Barrel Bolt

Barrel bolts are only useful for the inside of the door, as they use no key and are engaged or disengaged by hand. They consist of a horizontal cylinder that is pushed into place to latch the door onto the back or front of the doorframe. They are mostly used for toilets or bathrooms, or as locks for extra security for the inside of the front door.

The Hinge Bolt

Hinge bolts are an additional piece of security that can be very useful. They are mounted on the opposite side of the door of the main lock and help prevent the door from being taken off its hinges.

The Hook Bolt

Hook bolts are used for sliding doors, and they consist of a spring bolt that is attached to a hooked latch.

What is the hole in a door latch?

The latch bore, also known as the edge bore, is the hole drilled from the side of the door into the cross bore to allow the latch of the lock to be installed and to accommodate the sliding of the deadbolt. The diameter of the latch bore is generally 1” to accommodate bolts from either mechanical or electronic locksets.

What is the trim on a door knob called?

Trim: Sometimes called a rose , the trim is a decorative plate attached to the door under the knob or lever. Depending on the lock you choose, there are a number of available trim styles and finishes to meet your specific preferences and that fit the uniqueness of your home’s look and style.

What is a cross bore door?

The cross bore is the main hole drilled into the face of the door where the body of the lock (chassis) is installed . The latch bore, also known as the edge bore, is the hole drilled from the side of the door into the cross bore to allow the latch of the lock to be installed and to accommodate the sliding of the deadbolt. The diameter of the latch bore is generally 1” to accommodate bolts from either mechanical or electronic locksets.

What is a left handed lever?

A left-handed lever has the door hinges located on the left side as you look at the door’s exterior. A right-handed lever has the door hinges located on the right side of the door as you look at it from the outside.

What is a strike plate?

Strike plate: Similar to a faceplate, the strike plate is a metal plate that is affixed to the doorjamb and has a hole (or holes) that accommodate the lock bolt. It is not only decorative. The strike plate protects the doorjamb and adds security to the opening.

What is a latch bolt?

Latch bolt: Sometimes abbreviated as latch, this is the type of lock that has a beveled, spring- operated bolt that engages when you close the door. If you’ve ever accidentally locked yourself out of your house or a hotel room, you know this type well.

What is a faceplate on a door?

Faceplate. A metal plate on the edge of the door, next to the latch or deadbolt, the faceplate protects the lock from wear and tear. It may have rounded corners or be a circular drive-in faceplate. The shape of the faceplate used during installation depends on your door’s preparation.

Why is a lock required on a door?

The lock prevents the spindle of the bolting mechanism from retracting from the door frame, making it impossible to open the door. A key is required to open the door from the exterior side of the door. Advertisement.

What is the bolt mechanism on a door?

The bolting mechanism is the metal piece that extends from the center of the doorknob into the door frame's latch hole to keep the door closed. The bolting mechanism has a spindle that retracts from the door frame when one of the handles is twisted, allowing the door to open.

What is a doorknob?

Doorknobs have two handles, one on each side of the door, and are either locking or non-locking. A locking doorknob features a locking mechanism on the interior handle and a slot for a key on the exterior. On non-locking doorknobs, the interior and exterior handles are smooth and contain no locking mechanism.

What is a strike plate?

The strike plate is a thin piece of metal installed into the door frame to reinforce the wood around the latch hole. Strike plates prevent the wood from wearing out and allow the door to latch and lock correctly.

What is the most important part of a door handle?

The most important part required to complete door handle installation is the door mortice latch or mortice lock mechanism . The mortice latch or mortice lock is fitted inside the door by passing the spindle through it, connecting either end of the door handles to the lock.

What is the second most visible part of a door?

The second most visible part that sits on the door surface is the backplate. It is called a backplate, as this is the plate behind the lever or the knob. A backplate is also known as a rosette or rose if it is circular in shape.

What is the spindle on a door?

The square metal bar that connects the door handles on either side of the door is called the spindle. In the UK, the spindle thickness is standard 8mm to operate with UK standard latches and locks. However, the length of the spindle can vary to suit the thickness of your door.

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