Complete List of Door Handle Parts Names

You will notice many pieces when you look at a door handle. Here is a simple list:

• Exterior handle

• Interior handle

• Spindle

• Latch mechanism

• Strike plate

• Rose or escutcheon plate

• Backplate

• Thumb turn

• Key cylinder

• Screws and fasteners

• Spring mechanism

• Faceplate

• Deadbolt

• Privacy button or lock

• Specialized parts

Lever handles are very common because they make doors easy to open. Door knob styles are still liked for their classic look. You use these pieces for metal, fire-rated, and wooden doors. Each piece connects to the door lock system. This guide helps you find, fix, or choose the right pieces. D&D HARDWARE, a professional door hardware manufacturer in China, gives trusted help for business and commercial jobs.

Key Takeaways

• Learn about the main parts of door handles. These include the exterior handle, latch mechanism, and key cylinder. This helps you see how they work together.

• Pick the right door handle for your needs. Lever handles are easier to use. Knobs give a classic style.

• When you install door hardware, make sure you have all the parts. You need screws and fasteners. This helps you avoid problems when putting it together.

• Think about what the door handle is made of. Metal like stainless steel lasts a long time. Plastic costs less but does not last as long.

• For more safety, choose deadbolts and locks with special features. These features stop picking and copying keys without permission.

Door Handle Parts List

Exterior Handle

The exterior handle helps you open and close outside doors. It is part of a handleset. This handle often works with a thumb turn and deadbolt for more safety. Exterior handles can be made from wood, metal, plastic, or glass. Metal handles like stainless steel or brass last a long time. They are good for busy places.

• Exterior handles make entry doors safer and easier to use.

• Commercial exterior handles have strong locks.

Interior Handle

Interior handles are made for comfort and style. You use them in rooms like bedrooms, offices, or meeting rooms. These handles look nice but are not for security. They are simple to use and come in many colors.

1. Standard Sizes:

• Backset: 2-3/8 inches or 2-3/4 inches.

• Handle Height: 34 to 48 inches from the floor.

• Handle Length: Lever handles are 4 to 5 inches; knob handles are 2 to 2.5 inches wide.

2. Measurement Guide:

• Use a tape measure, pencil, and paper.

• Measure backset, handle height, and door thickness.

3. Choosing the Right Handle:

• Pick a handle that fits your door's size.

• Choose a color or finish that matches your room.

• Interior handles are easy to use and come in many styles.

Spindle

When you turn the handle, the spindle spins and moves the latch bolt. This lets you open the door. The spindle links both handles together so the latch works.

Latch Mechanism

The latch mechanism keeps the door shut. It fits into the strike plate and holds the door closed until you turn the handle. Tubular latches are used for most inside doors. Mortise latches are best for heavy doors. Magnetic latches close quietly.

• The latch pulls back when you turn the knob.

• The strike plate helps stop the door from opening by accident.

Strike Plate

A strike plate holds the latch and bolt in the door frame. It makes the door stronger and harder to break into.

• The strike plate helps the door latch work right.

• It makes the door safer and work better.

Rose or Escutcheon Plate

You see the rose or escutcheon plate with levers and knobs. It adds style and covers the area around the handle. You can mix and match these plates for custom looks.

• The plate makes the door look better and protects it.

• Solid brass rosettes can have fancy designs.

Backplate

The backplate holds the handle and covers screws. It makes the handle stronger and gives a neat look.

Thumb Turn

You use a thumb turn to lock or unlock a door from inside. It does not need a key, so it is good for bathrooms or bedrooms.

• Turn the knob to lock or unlock the door.

• Thumb turns are often used with key locks for more safety.

Key Cylinder

The key cylinder lets you lock and unlock the door with a key. It has features like stopping picking and bumping, stopping key copying, and factory control of keys.

Screws and Fasteners

You need screws and fasteners to put door handles and locks on. Most kits come with the right screws. For deadbolts, use screws longer than the door for more strength.

• You do not need extra screws for latch installation.

Spring Mechanism

The spring mechanism makes the handle easy to use. It lowers the force needed to turn the lock and makes it last longer. A good spring helps the handle work well for a long time.

• The spring helps the handle go back to its starting spot.

• Good design makes the handle comfortable to use.

Faceplate

The faceplate holds the latch assembly to the door. It keeps the latch safe from damage and lines it up right.

• The faceplate helps the lockset work well.

• It must be attached right for safety.

Deadbolt

A deadbolt gives the door extra safety. It uses a strong metal bolt, so it is hard for someone to break in. Deadbolts are used on front doors at homes and businesses.

• Deadbolts do not use springs, so they are hard to force open.

Privacy Button or Lock

Privacy buttons or locks are for inside doors like bathrooms and bedrooms. You lock them by pushing or turning a button inside. You can open them from outside with a tool if needed.

Specialized Parts

You find special parts in business and high-security doors. These include panic bars for fire doors, hydraulic hinges, overhead stops, and electronic hardware for more safety.

• Electronic door hardware makes doors safer and easier to use.

• Special parts are used in schools, hospitals, and government buildings.

Parts of a Door Knob Explained

Core Parts of a Door Knob

You see many pieces when you look at a door knob. Each part has a job. The core parts of a door knob help you open, close, and secure doors in homes, offices, and commercial spaces. Here is a simple list of the main components:

• Knob or handle: You grip this to turn and open the door.

• Rosette or backplate: It covers the area around the knob and hides screws.

• Strike plate: This metal plate sits on the door frame and catches the latch.

• Keyhole: You insert a key here if the door knob has a lock.

• Spindle: It connects both sides of the knob and turns when you use the handle.

• Latch assembly: This part keeps the door closed until you turn the knob.

• Deadbolt: Some knobs have this for extra security.

• Springs: They help the knob return to its starting position.

• Lock button or thumb turn: You use this to lock or unlock the door from inside.

• Mounting plate: It holds the knob steady on the door.

• Set screws: These keep the knob and other parts in place.

Tip: When you choose door hardware for a commercial project, check if the knob includes all these core parts. This helps you meet safety and durability standards.

How Each Part Works

You may wonder how door knob parts work together. Each piece connects to another, making the door handle easy to use and secure. The spindle links the knob to the latch assembly. When you turn the knob, the spindle rotates and pulls the latch back. The latch moves out of the strike plate, and the door opens. Springs push the latch back into place when you release the knob.

If your door knob has a lock, the keyhole and cylinder add security. You insert a key into the cylinder. The plug inside the cylinder turns only when the correct key lifts the pins. Springs push the pins into place. The plug rotates, and the latch or deadbolt moves. This keeps the door locked or unlocked.

Here is a table showing how some lock parts work:

You see how door knob parts work together to keep your door secure. The latch, spindle, and knob make opening and closing simple. The lock and cylinder add protection for your space. You can use this knowledge to choose the right door handle or fix a broken door lock.

Door Lock Parts and Assembly

Main Door Lock Parts

You need to know the main door lock parts before you start any installation or repair. These parts work together to keep your door panel secure. Here is a list of the most important parts of a door lock:

• Cylinder

• Lock case

• Bolt

• Latch

• Strike plate

• Knob or lever

• Faceplate

• Cuff

• Latch spring

• Nut

• Locking bracket

• Guide pins

Each part of a door lock has a special job. The cylinder lets you use a key. The lock case holds the locking mechanism. The bolt and latch keep the door panel closed. The strike plate sits on the door frame and catches the latch or bolt. The knob or lever connects to the spindle and lets you turn the locking mechanism. The faceplate covers the edge of the door panel and protects the latch. Some door lock parts, like the cuff and latch spring, help the locking mechanism move smoothly.

Tip: When you choose a door lock for a commercial project, check if all these parts of a door lock are included. This helps you meet safety standards.

How Door Lock Parts Fit Together

You can assemble door lock parts step by step. This process helps you understand how each part works inside the door panel. Here is a simple guide:

1. Measure the thickness of your door panel. This step ensures the door lock parts fit.

2. Mark the height for the lock on the door panel. Most people use 36 inches from the floor.

3. Use a template to mark where you will drill holes for the cylinder and latch.

4. Drill a hole through the door panel for the cylinder and knob or lever.

5. Drill a smaller hole on the edge of the door panel for the latch.

6. Insert the latch into the edge hole. Secure it using the faceplate and screws.

7. Place the exterior part of the door handle and cylinder through the main hole.

8. Attach the interior part of the door lock. Connect both sides using screws and guide pins.

9. Install the strike plate on the door frame. Make sure it lines up with the latch and bolt.

10. Test the locking mechanism. Turn the knob or use the key to check if the latch and bolt move smoothly.

You see how the parts of a door lock work together. The cylinder controls the locking mechanism. The latch and bolt keep the door panel closed. The strike plate and faceplate add strength. The parts of a deadbolt give extra security. When you know how these door lock parts fit, you can install or repair a door lock in any business or commercial setting.

Types of Door Handles

Knob vs. Lever Handles

You see two main types of door knobs in most buildings: knob handles and lever handles. Each type works best in different places. Knob handles give a classic look. You turn them to open the door. Lever handles use a simple up-and-down motion. You push or pull the lever. This makes them easier for people who have trouble gripping or turning.

Here is a table to help you compare both types:

You may want to choose the right door knob for your project. Lever handles work well in places where you need easy access. Knob handles suit homes or places where style matters most.

Passage, Privacy, and Entry Sets

You find three main types of door knobs for different needs. Passage sets work for doors that do not need a lock. You use these in hallways or closets. Privacy sets have a lock on one side. You use these for bathrooms or bedrooms. Entry sets have a lock and key. These sets protect outside doors.

You can see the main features in this table:

You can install a door knob set that matches your needs. Some entry sets include a keypad door knob for keyless entry. This helps you control access in offices or commercial spaces.

Unique or Optional Components

Some types of door knobs come with extra features. You may see a keypad door knob in modern offices. This lets you enter a code instead of using a key. It adds security and makes it easy to change codes when needed. You can also find handles with built-in alarms or smart lock features.

Here are some unique options:

• Keypad door knob for keyless entry

• Smart lock that connects to your phone

• Heavy-duty latch for high-traffic doors

• Fire-rated handles for safety

D&D HARDWARE offers many solutions for these needs. It has experience in providing door hardware for metal, fire-rated, and wooden doors. You can find the right product for any business or commercial project.

Tip: When you select from the types of door knobs, think about who will use the door and what level of security you need. This helps you pick the best option for your space.

Conclusion

Understanding what each door knob and door lock part does helps you fix things. You can use this guide to find parts and solve problems fast. It makes fixing locks easier and helps you pick the right one.

• Use the list to look up parts quickly.

• Check every part before you buy or fix it.

If you need special help or have a big project, ask experts at D&D HARDWARE. They give good advice and strong products for businesses.

FAQ

What is the difference between a door knob and a lever handle?

You turn a door knob to open the door. You push or pull a lever handle. Lever handles work better for people who have trouble gripping. Many offices and commercial spaces use lever handles for easy access.

How do you know if a door lock is secure?

You check the material and design. A strong door lock uses solid metal parts. It should meet safety standards for commercial use. You can ask for certifications from your hardware supplier.

Can you replace a door knob without changing the whole lock?

Yes, you can change a door knob and keep the same lock. You remove the old knob and attach the new one. Make sure the new knob fits your door and matches your business needs.

What parts do you need to install a new door knob?

You need the knob, spindle, latch, strike plate, screws, and sometimes a backplate. Most door knob kits include these parts. You can check the kit before you start the job.

Why do commercial doors use special hardware?

Commercial doors face heavy use. They need strong hardware for safety and durability. Many businesses choose hardware that meets fire safety and security standards.