Your Professional Self Drilling 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.
Elimination of Pilot Holes: Unlike standard screws, self-drilling screws do not require pre-drilled pilot holes. Their specialized tips act as miniature drills, cutting through the material as they are driven in. This means that you can directly insert the screw into the material without any preliminary steps, saving considerable time on drilling pilot holes.
Increased Efficiency: The ability to avoid pilot holes leads to faster assembly times. Workers can quickly secure materials together without having to stop to drill holes, which is especially advantageous in large-scale construction projects or mass production settings where time is money.
Versatility: Self-drilling screws are suitable for a variety of materials including metal, plastic, and even certain types of wood. This versatility allows them to be used in a wide range of applications, from roofing and siding installations to automotive repairs and industrial machinery assembly.
Strength and Durability: Because self-drilling screws create their own threads, they can often achieve a tighter grip and stronger hold in the material compared to screws that require pre-drilled holes. This is particularly true in applications involving thinner materials, where the screw might strip out a pre-drilled hole.
Accessibility
In tight spaces or difficult-to-reach areas, drilling pilot holes can be challenging or impossible. Self-drilling screws eliminate this issue, allowing for secure fastening in locations where traditional screws would be impractical.
Reduced Labor Costs
By speeding up the installation process and reducing the need for additional tools and labor hours, self-drilling screws can help in lowering overall project costs.
Accuracy
With self-drilling screws, there’s less risk of misalignment or the screw going into an unintended location, as the screw itself creates its path. This can lead to more accurate and consistent fastening results.
Common Applications of Self Drilling Screws
Metal Roofing and Siding
In construction, self drilling screws are widely used to attach metal roofing sheets and siding panels to steel or wood framing. Their sharp points can pierce metal sheets without slipping, making them ideal for outdoor structures.
Steel Framing
Steel studs and metal framing require strong fasteners that won’t strip or loosen. Self drilling screws are commonly used in commercial and industrial buildings for assembling steel frames.
HVAC Installation
Heating, ventilation, and air conditioning systems often require fastening ductwork made of thin sheet metal. Self drilling screws are perfect for these tasks due to their clean finish and high holding power.
Wood-to-Metal Connections
Many construction and furniture projects require joining wood panels to metal brackets or frames. Self drilling screws make these connections quick and secure.
Automotive and Aerospace
Because of their precision and strength, self drilling screws are also used in assembling automotive parts, trailers, and aircraft interiors.
DIY and Home Repairs
Homeowners and hobbyists use self drilling screws for fencing, decking, shelving, and general repairs due to their convenience and versatility.
The Types of Self-Drilling Screws
Low-Profile Self-Drilling Screws
These screws are perfect for applications where a discreet fastening is needed. Subtypes include pancake head screws and bay pole screws, which are ideal for scenarios requiring a low profile, such as in metal roofing or thin materials.
Countersunk Self-Drilling Screws
Countersunk screws are designed to sit flush with the material’s surface, providing a smooth finish. Available in various sizes, they can come with or without wings, offering flexibility for different projects, especially in wood and metal combinations.
Self-Drilling Screws with Wings
These are particularly useful for drilling into thicker materials like heavy-duty metals. The wings help create a larger hole, making these screws suitable for robust fastening in construction and industrial applications.
Self-Drilling Screws for Plastic
These screws are tailored for use with plastic materials, such as in ductwork or piping, where a secure and non-damaging fastening is critical.
Specialty Self-Drilling Screws
Specialty screws are designed for specific industries, like medical applications, where precise and reliable fastening is required. These screws often have unique features like non-standard drive types or coatings for specific environments.
Size
Description of Self Drilling Screws
|
Material |
Carbon C1022 Steel, Case Harden&Stainless Steel |
|
Head Type |
Hex |
|
Thread Type |
Full thread, partial thread |
|
Surface Finish |
Black/grey phosphate, White/yellow zinc plated, Nickel, Ruspert and Pre Painted |
|
Diameter |
#8 (4.2mm), #10 (4.8mm), #12 (5.5mm), #14 (6.3mm) |
|
Point |
Drilling Tail |
|
Standard |
Din 7504K |
|
Non-Standard |
OEM is available |
Lead Time
|
Quantity (pieces) |
1 - 2000 |
20001 - 10000 |
10001 - 20000 |
> 20000 |
|
Lead time (days) |
12 |
18 |
22 |
To be negotiated |
Packaging
We provide packaging methods such as bag packaging, paper box packaging, plastic box packaging, and can provide customized packaging.
Packaging Details：
We have several sizes of packing dimensions, can be 20kg or 25kg per carton;
For large orders, we can design specific sizes of boxes and cartons;
Normal Packing: 1000pcs/500pcs/250pcs per small box. then small boxes into cartons.
Can provide special packings as middle east clients requests.
FAQ
As one of the leading self drilling screw manufacturers and suppliers in China, we warmly welcome you to wholesale bulk self drilling screw in stock here and get pricelist from our factory. All customized products are with high quality and competitive price.
Hex Washer Head Self Drilling Screw With EPDM Washer, Drilling Tip Self Drilling Screw, Self Drilling Screw With Wings