Your Professional Screw Manufacturers
Handan DongChao Hardware Products Co., Ltd. is a leading fastener manufacturer and factory established in 2008, located in the fastener capital of China. With nearly two decades of experience in design, production, and global distribution, we specialize in producing self drilling screws, Tek screws, and self tapping screws. In addition, we supply a wide range of high-quality fasteners including bolts, nuts, washers, shear studs, threaded rods, anchor bolts, and rivets, serving diverse industries worldwide.
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Why Choose Us
Professional Team
The members of the team are highly skilled and proficient in their respective roles and possess the necessary education, training, and experience to excel in their jobs.
Quality & Certification
Handan DongChao adheres to strict international quality standards, holding ISO and CCC certificates. Every product is engineered for durability, strength, and reliability to meet the needs of demanding applications.
Customized Services
We understand that each customer has unique manufacturing needs. That’s why we offer customization options to cater to your specific requirements.
Global Market
Our fasteners are widely exported to USA, UK, UAE, Saudi Arabia, Vietnam, Korea, Africa, South America, and many other regions, earning trust and recognition from customers worldwide.
Benefits of Screw
A Mechanical Edge
When you choose screws, you gain a mechanical advantage in the process. Driving a screw uses less energy than hammering a nail into the same material. So for those of you who use hand tools, projects will instantly become easier when working with screws.
Extra Strength & Long-Lasting Hold
Screws are very strong and are built to last. This is a stark contrast to nails, which may come loose over time. This happens when the materials they connect with begin to expand and shrink over time. Screws are built to resist this problem. Their hold is longer-lasting and stronger.
Rust Resistant
Because screws have a strong and tight bond with their adjacent material, this makes them less susceptible to rust. The tight fit prevents moisture and contaminants from coming into contact with the screw shaft, maintaining its long-lasting hold. So even if the screw head starts to rust, the shaft will remain intact and stay put thanks to this preservation. This advantage makes screws a better long-term fixation option than nails.
Easy to Remove
When it comes to removal, no fastener is easier than a screw. Of course, you can remove nails and staples. However, you may need special tools to remove them. Using screws, they can be pulled out of their sockets using the same tool that screwed them in. Therefore, you don' t need to look for different tools and you save time on your work.
Reuse
Due to the strength and longevity of screws, you can reuse them more when compared to nails. They seldom bend during the removal, so they can be reused for another application. You can also reinsert them into the same hole without sacrificing strength.
Application of Screws
Construction: Screws are commonly used in construction to fasten wood, metal, and other materials together. They are used in framing, roofing, and other applications where a strong, secure hold is needed.
Woodworking: Screws are commonly used in woodworking to fasten two or more pieces of wood together. They can be used in furniture, cabinets, and other woodworking projects.
Automotive: Screws are used in the automotive industry to secure parts and components together. They are used in engines, transmissions, and other parts of a vehicle.
Electronics: Screws are commonly used in the manufacturing of electronics to secure components to circuit boards. They are also used for assembly of electronic devices such as laptops, smartphones, and desktop computers.
Medical: Screws are used in medical applications such as orthopedic surgery to attach plates and screws to bones that have been fractured or broken.
Aerospace: Screws are used in the aerospace industry to secure components together and are critical to the safe operation of airplanes, rockets, and other spacecraft.
Household: Screws are used in a variety of household applications, such as hanging pictures, installing shelving, and assembling furniture.
Types Of Screws
Wood Screws
Wood screws are sharp-pointed screws for nonstructural, wood-to-wood fastening. Wood screws have coarse threads and an unthreaded shank near the head, which allows the screw to pull the wood pieces tightly together.
Cement Board Screws
Cement board screws are fully threaded screws that secure backer board to wall studs or a subfloor for tile projects. They have a coating that resists corrosion from moisture and mortar. You can find cement board screws for wood, metal or both.
Drywall Screws
Drywall screws are fully threaded screws for interior projects, such as securing drywall to studs. Coarse-threaded screws are for hanging drywall on wood studs, while fine-threaded screws work with metal studs. Drywall screws don' t have the strength to support cement board and tile.
Deck Screws
Deck screws are designed for decks, fencing and other outdoor construction projects. Deck screws are either made of wood or a composite metal. Wood deck screws have a coarse-threaded portion and an unthreaded shank, like standard wood screws. Composite deck screws have finer threads and smaller heads. Some have a second set of threads to prevent the composite material from mounding at the screw head.
Lag Screws or Lag Bolts
Lag screws fasten heavy materials or components that handle large loads. Lag screws/bolts have hex heads, so they require a wrench or socket and ratchet to install. You may also see eye lag screws, which are simply wood screws with a ring at the head for securing rope or chain. They can' t carry the load a lag screw or bolt can.
Structural Wood Screws
Structural wood screws have a design, like wood screws, with coarse threads and an unthreaded shaft. However, they' re much stronger than basic wood screws. Depending on building codes, they can function like lag screws or bolts.
Product Description
|
Material |
Carbon C1022 Steel, Case Harden&Stainless Steel |
|
Head Type |
Wafer Truss head |
|
Thread Type |
Full thread, partial thread |
|
Surface Finish |
Black/grey phosphate, White/yellow zinc plated, Nickel, Ruspert. |
|
Diameter |
#7 (3.9mm), #8 (4.2mm), #10(4.8mm), #14 |
|
Point |
Drilling Tail |
|
Standard |
Din 7504T |
|
Non-Standard |
OEM is available if you provide drawings or samples. |
|
Packing |
Box, bulk in carton or bags ,polybag or Customer request |
Size Specification
Screw Process
The rough flowchart is as follows:
Delivery
Selling Units
Single item
Single Package Size
15.0X10.0X10.0 cm
Single Gross Weight
1.100 kg
FAQ
As one of the leading screw manufacturers and suppliers in China, we warmly welcome you to wholesale bulk screw in stock here and get pricelist from our factory. All customized products are with high quality and competitive price.
