What are the parts of the deadbolt lock

When looking for door hardware that satisfies your requirements for security, functionality, and style, whether online or in your neighbourhood home improvement store, it helps to be able to walk the walk. We want to clarify some of the more prevalent jargon and help you comprehend the sometimes enigmatic and perplexing world of door hardware by explaining terms like backset, bore, striking plate, and spindle. One of the most important components of door lock is the deadbolt lock. It is a mechanism that provides an additional layer of security to your door. Once you get the hang of it, it’s more straightforward than it seems, and before long, you’ll be able to dazzle your friends with your newfound understanding of door lock components.

We’ll also provide helpful insight into the door lock and security solutions accessible to you. Let’s start with the lock components generally included in the package with door hardware.

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Door Lock Components

Door locks are the most important component in your home security system. You can’t have a home security system without door locks. There are a lot of different components that make up a lock system, here is a list of them for you to look at.


It is the internal body of the lock, the hidden working components inside the door, similar to the engine under the hood of your car. The chassis decides whether your lock is Privacy/Bed & Bath, Passage/Hall & Closet, or Combined Interior, among other features. To view a selection of mechanical and technological choices, including the newest smart locks, go to schlage.com.


The trim, referred to as a rose, is a decorative plate fastened to the door beneath the knob or lever. Several trim types and finishes are available depending on the lock you select to suit your individual preferences, which compliments your home’s distinctive design and character.


Deadbolts are one of the most effective ways to secure a door. One can only open these locks with a key from the outside or a thumb turn from the inside. On external doors, we often mount the deadbolt above a handle set’s knob, lever, or grip. The component of the lock that keeps your door closed is called a deadbolt.

Parts of deadbolt lock

A deadbolt lock is an excellent lock that can secure your home or business against intruders. It has a mechanism called a deadbolt, which is a type of locking pin that only owner can open with a certain key. These locks are simple, yet effective, and you should have at least one on every entrance of your property. Most people don’t know how many parts make up a deadbolt lock, so we’ve listed the most important parts for you here.

Thumbturn / Thumb-latch

You lock and unlock your deadbolt inside your home using the thumb-latch (also known as a thumb turn).

Turn- or tailpiece

The part of your lock that extends through your door from the exterior key cylinder to the inside of your entry is the turn piece (also known as a tailpiece).

To operate your lock, connect the thumb latch to the turn piece. The tail piece acts as a base of the the thumb latch on your August lock.


Your keys operate your deadbolt through the keyhole.


Any plate, such as trim and handle set plates that encircles a keyhole or lock is escutcheon. Firstly, It protects the surrounding region from getting scratches by a key. Secondly, it prevents the lock cylinder from drilling out. Thus, giving you more security.


The faceplate, a metal plate on the edge of the door adjacent to the latch or deadbolt, guards the lock against damage. It could be a circular drive-in faceplate or have rounded corners.

The preparation of your door determines the shape of the faceplate that you will be using during installation.


The backplate is attached to the latch when the faceplate has rounded corners so that it sits between the faceplate and the latch bore (the hole where your latch enters the door).

Locking bolt:

This lock style, sometimes abbreviated as a latch, has a bevelled, spring-operated bolt that engages when you close the door. You are familiar with this kind if you’ve unintentionally locked yourself out of your home or a hotel room.


A spindle acts as the bar that connects knobs or levers on the door and controls the lock mechanism.

Strike plate

The strike plate is a metal plate attached to the doorjamb and, like a faceplate, includes a hole (or holes) for the lock bolt. It is more than just ornamental; the strike plate secures the opening while guarding the doorjamb.

Read Also : How To Change The Locks On Your Car?

Additional door hardware terms 

There are a few other terminologies besides parts that you can find helpful while selecting and installing your door hardware.


The backset is the measurement between the edge of the door and the prepared cross borehole drilled to install most locks. You may need the minimum and maximum dimensions for your lock to work with every installation. Almost all typical doors with a 2-3/8″ or 2-3/4″ backset can fit a variety of locks.

Bore/drill holes

Boreholes are the openings in the door that house and enable the installation of your door hardware. You should bore the central hole into the door’s face to attach the lock’s chassis, known as the cross bore. The hole drilled from the side of the door into the cross bore to enable the installation of the lock’s latch and to facilitate the sliding of the deadbolt is referred to as the latch bore, also known as the edge bore. The latch bore is typically 1″ in diameter to accommodate bolts from mechanical or electronic locksets.

Read Also : 24 Hours Door Unlock Emergency in Dubai

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