News | Lever Handles Manufacturer

2026-07-31

Door knobs do not fit all doors automatically. Although many door knobs have similar appearances, their dimensions, mounting structures and functions can be different. Selecting the wrong hardware may cause installation difficulties, poor operation or additional modification work.

2026-07-30

Are Door Knobs Standard Size

Door knobs may look similar, but they are not always manufactured in one universal standard size. Different door systems, regions, building types and hardware functions can require different dimensions. Before replacing or purchasing door knobs, accurate measurement is essential to ensure correct installation and reliable operation.

2026-07-29

Are All Door Knobs Universal

Not all door knobs are universal. Although many door knobs share similar appearances, their internal structures, mounting dimensions and functions can vary significantly. Choosing the wrong door knob may result in installation problems, poor operation or the need for additional door modifications.

2026-07-28

Why Do You Wrap Aluminum Foil Around Door Knobs

Wrapping aluminum foil around door knobs is a common temporary protection method used during painting, renovation and cleaning projects. The purpose is usually to prevent paint, dust or chemical residue from reaching the hardware surface.

2026-07-27

Why Do People Wrap Foil Around Door Knobs

Wrapping foil around door knobs is a common household practice that appears in renovation and maintenance situations. However, aluminum foil is not a method to improve door knob strength, security or product lifespan.

2026-07-24

How To Clean Old Brass Door Knobs

Cleaning old brass door knobs can restore their appearance and help extend the service life of existing hardware. Over time, brass surfaces may develop oxidation, fingerprints, dust and environmental stains. Proper cleaning methods can improve appearance while avoiding unnecessary damage to the original finish.

2026-07-23

How To Childproof Door Knobs

Childproofing door knobs is an important safety step for families, schools and childcare environments. A door knob allows easy access for adults, but young children may accidentally open rooms that contain safety risks. Proper childproofing solutions help reduce unwanted access while maintaining convenient daily operation.

2026-07-22

How High Are Door Knobs

The height of door knobs is an important factor that affects comfort, accessibility and overall door design. While there is no single universal height requirement for every application, door knobs are commonly installed according to door type, user needs, building standards and project specifications.

2026-07-21

Are Black Door Knobs Still in Style

Black door knobs are still a popular choice in modern architectural design because they combine functional hardware with a clean visual appearance. The popularity of black finishes comes from their ability to match different interior styles, including modern, industrial, minimalist and contemporary spaces.

2026-07-20

Why Wrap Your Door Knobs In Aluminum Foil

Wrapping door knobs in aluminum foil is a common household tip discussed online, but the reason behind this practice is often misunderstood. Aluminum foil does not improve the strength, durability or security of a door knob.

2026-07-17

How To Remove Door Knobs With No Screws

Removing door knobs with no visible screws can be challenging because many modern and traditional door hardware designs use concealed fixing structures. Instead of exposed screws, manufacturers often use hidden mounting plates, spring clips or release mechanisms to create a cleaner appearance.

2026-07-16

How To Paint Door Knobs Without Removing Them

Painting door knobs without removing them can refresh old hardware quickly, but the result depends heavily on surface preparation, material condition and coating compatibility.