Self Tapping Screw
Your Professional Self Tapping 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.
Advantages Of Self-Tapping Screws
Easy installation: Traditional screws need to use a tap to tap the internal thread on the material in advance, while self-tapping screws can be screwed directly into the material, greatly simplifying the operation process.
Strong Material Adaptability: Whether it is wood, plastic, or thin metal plates with lower hardness, self-tapping screws can be screwed in smoothly with their sharp tips and special thread design.
For softer materials, self-tapping screws are more efficient in fastening. Taking the installation of gypsum board as an example, ordinary screws need to be fixed with nuts, while self-tapping screws can be quickly screwed in within 3-5 seconds, and the threads are tightly engaged with the material. A single screw can withstand a tensile force of about 80-100N to ensure structural stability.
Diverse specifications: Its size covers a variety of diameter specifications such as M1.6-M12, and the length ranges from 6mm to 100mm; the tip shape includes pointed tail, round tail, triangular tail, etc. - the pointed tail is suitable for quickly penetrating thin metal plates, and the triangular tail has stronger cutting force and can cope with harder materials.
Uses of Self Tapping Screws
Sheet Metal works
The drill-like tip of the self drilling screw is the preferred choice when it comes to working on metal sheet. Metal sheets are used for framing numerous objects like auto-mobile, construction, furniture etc, and self drilling screws are the preferred choice of screw in such scenarios.
Medical applications
Fasteners in our body doesn’t seem like a good idea, but that is exactly what goes on in case of replacements and other kinds of tissue/ muscle repair surgeries. Numerous medical articles and journals routinely mention the use of self-tapping screw and its functionality inside the body.
Municipal works
Self tapping screws are the preferred type of screw in almost any and every gutter-attachment system. They reduce the time it would take for installing the screw and also provide a secure hold and finish. These screws help to keep gutters in-tact, so that it can withstand different kinds of weather, resist corrosion, among other things.
Roofing solutions
Self-tapping screws allow for smooth framing work for whatever type of roofing sheet or material you might use, be it Asphalt, wood and metal each substrate will use a different type of self drilling/ tapping screw.
Types Of Self-Tapping Screws: Head Style
Flat Head
Flat-head self-tapping screws, also known as countersunk screws, The angle of the head has a flattened profile designed to sit flush with the surface of the material. Leaving a smooth finish.
Oval Head
Oval head self-tapping screws are similar to flat heads but with a slightly rounded shape. This provides a finished look while still allowing the screw to sit close to the surface.
Pan Head
Pan head self-tapping screws have a rounded, slightly domed head with a larger surface area compared to the flat head. The larger head provides more holding power.
Round Head
Round head screws are similar to pan head screws but with a more pronounced dome shape. The round head allows for easy insertion and is often found in applications requiring less pressure on the material.
Truss Head
Truss head screws feature a broad, low-profile head that is designed to distribute pressure evenly across the surface. The head's larger diameter ensures a secure hold.
Hex Head
Hex head self-tapping screws feature a hexagonal-shaped head that requires a wrench or socket to tighten or loosen. This head style is designed for applications requiring higher torque and a stronger hold.
Size Chart
|
Screw Diameter(D) |
Length(L) Mm |
Pozi Drive Size |
Head Diameter(Dk)Mm |
Head Height(K) |
Metric Range |
Approx.Inch Equivalent |
|
2.5mm |
10-25 |
PZ1 |
4.7 |
1.4 |
M2.5 |
#2-#3 |
|
3.0mm |
12-35 |
PZ1 |
6.0 |
1.7 |
M3 |
#4 |
|
3.5mm |
16-45 |
PZ2 |
7.0 |
2.1 |
M3.5 |
#5-#6 |
|
4.0mm |
16-60 |
PZ2 |
8.0 |
2.4 |
M4 |
#7-#8 |
|
4.5mm |
20-70 |
PZ2 |
9.0 |
2.7 |
M4.5 |
#8-#9 |
|
5.0mm |
25-80 |
PZ2/PZ3 |
10.0 |
3.0 |
M5 |
#10 |
|
6.0mm |
30-100 |
PZ3 |
12.0 |
3.35 |
M6 |
#12 |
Specification
|
Parameter |
Specification |
|
Standard |
DIN 7981 / ISO 7049 |
|
Drive Type |
Phillips (cross recessed) |
|
Head Type |
Pan Head |
|
Thread Type |
AB type self-tapping thread |
|
Strength Grade |
Case-hardened steel or Stainless A2 / A4 |
|
Material |
Carbon steel, stainless steel, brass (on request) |
|
Surface Finish |
Zinc plated, black phosphated, nickel plated |
Lead Time
|
Quantity (pieces) |
1 - 5000 |
5001 - 20000 |
20001 - 50000 |
> 50000 |
|
Lead time (days) |
12 |
18 |
25 |
To be negotiated |
Product Packaging
Small box packing/ Bulk packing/ according to the customer's requirement
FAQ
As one of the leading self tapping screw manufacturers and suppliers in China, we warmly welcome you to wholesale bulk self tapping screw in stock here and get pricelist from our factory. All customized products are with high quality and competitive price.
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