EF Hardware Factory

Tang Strips for paper compression inside binders
Duo Tang Eyeletsfor secure file assembly
Tadpole Clips(spring wire clips) for flexible document holding
Prong Clipsfor paper stacking and filing

As a professional manufacturer with over 22 years of experience, we supply various file fastening accessories, including:

All products are made withhigh-quality materials, available in different sizes and finishes. We offerOEM/ODM customizationand serve clients in stationery, office supplies, education, and corporate sectors.

Size: M2-M10

Length: 5-150mm

Material: Stainless Steel, brass, carbon steel

Finish: Passivated or Nickel plating

Our male-female binding screws—also known as Chicago screws or book binding screws—are perfect for securely fastening paper stacks, files, catalogs, and sample books.

Made from high-quality metal , these binding posts are available in various diameters, lengths, head types, and surface finishes (nickel-plated, black, brass, etc.).

Widely used in file folders, notebooks, swatch books, leather goods, and more, our screws are easy to install, reusable, and customizable for your branding or packaging needs.

We support OEM/ODM production and provide fast delivery with consistent quality from our automated workshop.

Lever arch file metal eyelets 

Size : Customized size is ok 

Coating : Customized color also ok  

Material : Brass , Stainless , Steel and so on 

We supply a wide range of eyelets for file folders, binding mechanisms, packaging, and leather goods.

Our eyelets are available in metal (brass, iron, aluminum), with various inner diameters, lengths . Commonly used in lever arch files, paper fasteners, and display tags.

• Standard & Custom Sizes Available

• Rust-resistant finishes: nickel, brass, black, zinc, etc.

• OEM & ODM supported

Backed by 22 years of manufacturing experience, our factory uses automated equipment to ensure high precision and cost-effective production.

Size : Customized size is ok 

Color : Customized color also ok 

As a professional rivet manufacturer with over 22 years of experience, we supply a wide variety of rivets and eyelets for use in:

• File folders

• Ring binder mechanisms

• Lever arch clips

• Packaging, leather goods, and more.

Our rivets are available in metal (steel, brass, aluminum),used in lever arch file , ring binders and other file folder .

Whether you need standard sizes or custom OEM rivet solutions, our automated production lines ensure stable quality, high efficiency, and competitive pricing for both large and small volume orders.