China Self-Tapping Screw Manufacturer – Custom Fastener Factory
Self-tapping screws are high-performance fastening components designed for applications requiring strong thread engagement, reliable torque transmission, and stable long-term fastening performance. These screws combine the Torx Plus drive system, round head design, and self-tapping threads to provide efficient fastening solutions for electronics, automotive components, industrial machinery, and precision assembly. Unlike traditional cutting-thread screws that form threads by removing material, self-tapping screws form internal threads during installation by shaping and displacing the substrate.
For buyers, selecting the right self-tapping screws is crucial to ensuring assembly efficiency, product reliability, and long-term performance. Zeya is a fastener factory with over 20 years of production experience, specializing in the production of custom Torx Plus round head self-tapping screws based on customer drawings, samples, and technical requirements, providing reliable fastening solutions to industrial customers worldwide.

What is a Thread Forming Screw?
A thread forming screw is a specially designed fastener that forms a matching thread inside the substrate through compression during installation, unlike ordinary self-tapping screws which create threads by cutting the material. Compared to traditional thread-cutting screws, thread forming screws do not remove substrate material; instead, they use a special thread shape to compress the material outwards, resulting in a tighter and more stable threaded connection between the screw and the mounting hole.
Product Specifications
|
Item |
Specification |
|
Product Name |
Torx Plus Rounded Head Thread-Forming Screws |
|
Drive Type |
Torx Plus |
|
Head Type |
Rounded Head |
|
Thread Type |
Thread Forming |
|
Material Options |
Carbon Steel, Stainless Steel 304, Stainless Steel 316, Alloy Steel |
|
Size Range |
M1.6, M2, M2.5, M3, M4, Customized Sizes |
|
Length |
Customized According to Requirements |
|
Standard |
DIN, ISO, ANSI or Customer Specifications |
|
Surface Treatment |
Zinc Plating, Black Oxide, Nickel Plating, Passivation |
|
Manufacturing Type |
OEM / ODM / Custom Production |
|
Manufacturer |
Huizhou ZeYao Hardware Products Co., Ltd. |
Torx Plus Round Head Self-Tapping Screw Specifications
Zeyao offers a variety of sizes and specifications of round head self-tapping screws to meet diverse industrial fastening needs. Product dimensions can be customized based on customer drawings, samples, and application requirements.
|
Screw Size |
External Thread Diameter (d1) |
Head Diameter (D) |
Head Height (K) |
Pitch (P) |
Thread Length |
Drive Size |
|
K20 |
2.00 mm |
3.60 mm |
1.50 mm |
0.89 mm |
1.75 mm |
T6 |
|
K22 |
2.20 mm |
4.00 mm |
1.60 mm |
0.98 mm |
1.75 mm |
T6 |
|
K25 |
2.50 mm |
4.20 mm |
1.60 mm |
1.12 mm |
2.40 mm |
T8 |
|
K30 |
3.00 mm |
5.60 mm |
2.10 mm |
1.34 mm |
2.80 mm |
T10 |
|
K35 |
3.50 mm |
6.90 mm |
2.30 mm |
1.57 mm |
3.35 mm |
T15 |
|
K40 |
4.00 mm |
7.50 mm |
2.60 mm |
1.79 mm |
3.95 mm |
T20 |
|
K50 |
5.00 mm |
8.20 mm |
2.90 mm |
2.24 mm |
4.50 mm |
T25 |
|
K60 |
6.00 mm |
10.80 mm |
3.80 mm |
2.69 mm |
5.60 mm |
T30 |

Custom Self-Tapping Screw Procurement Process
1. Requirements Confirmation
You need to describe your requirements, including:
Material Requirements
Screw Size
Surface Treatment
Application Details
Order Quantity
Our engineering team reviews the requirements and confirms a suitable manufacturing solution.
2. Technical Assessment and Quotation
Based on product specifications, we assess:
Production Process
Material Selection
Mold Requirements
Manufacturing Cost
Then, we provide a detailed quotation and production plan.
3. Sample Confirmation
For custom self-tapping screws, we can produce samples for customer testing.
You need to confirm:
Product Dimensions
Thread Forming Performance
Installation Effect
Surface Quality
4. Mass Production
After sample confirmation, production begins, strictly controlling the following aspects:
Raw Materials
Thread Accuracy
Product Dimensions
Surface Treatment
Production Consistency
5. Quality Inspection and Delivery
Before shipment, the products will be inspected to ensure they meet customer requirements.
Inspection includes:
Visual Inspection
Dimensional Inspection
Thread Inspection
Packaging Verification




FAQ
Q: What is a Torx Plus self-tapping screw?
A: A fastener that uses a Torx Plus drive and thread-forming structure to create threads directly within the screw.
Q: What are the advantages of the Torx Plus drive?
A: Torx Plus provides higher torque delivery and reduces slippage during installation.
Q: What materials are available for the screw?
A: We offer carbon steel, 304 stainless steel, 316 stainless steel, and custom materials.
Q: Can you customize the size of self-tapping screws?
A: Yes, we support customization of diameter, length, thread, and surface finish.
Q: Which industries use these screws?
A: Common applications include electronics, automotive, industrial equipment, and consumer goods.
Q: Can you produce screws according to drawings?
A: Yes, Zeyao supports production based on drawings and samples.
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