Sanwei:Your Professional Combination Screw Manufacturer!

 

Hebei Sanwei Fasteners Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sale of fasteners, located in Hebei Province, China. Since its establishment,wei has been committed to providing customers with high-quality, high-performance fastener solutions, which are widely used in various fields such as construction, machinery manufacturing, automobile, and power communication.

 

 
 

Why Choose Us

 

 

OEM/ODM Service
Our customised fasteners are made to your special requirements. It can be fully threaded or partially threaded, and the thread, driving method, material, length, head shape, plating and all these can be specially designed according to your needs.

 

Good CNC machining technology
From material selection to finished products, Handan Sanwei provides you with comprehensive solutions when it comes to customised fasteners. The fasteners we make are high precision and strong. No matter what kind of precision you need, we can meet it and guarantee your satisfaction.

 

Strong engineering design team
Our company has an excellent and professional engineering team, and a number of technicians are elites in the industry. The staff always strives to explore new methods and technologies. From the selection of metals and special alloy materials to the finished fasteners, we can solve all aspects of the whole project engineering.

 

Professional Testing Laboratory
Quality assurance and testing is an important part of producing fasteners. Handan Sanwei has a specialised quality testing laboratory with spectrometers, hardness testers, tensile testers, salt spray test chambers and other equipment, where raw materials and final products are strictly tested. In addition, the company also has experienced testing experts who use professional methods to comprehensively test the fasteners and finally give you a detailed test report.

 

Digital Quality Control System
We rely on our self-developed full-process digital quality inspection system to strictly control every step from raw materials entering the factory to finished products being shipped. This system will always monitor the quality of the products to ensure that each batch of products meets the industry standards and complies with customer requirements. In addition, it collects and feeds back data in real time, giving you a clear understanding of product quality.

 

Advantages of Combination Screw

Strong Shear Resistance

Thanks to their special structure and the use of high-strength materials, combination screws exhibit excellent shear resistance. They can withstand greater force and shear pressure, making them ideal for applications that require high-strength connections. Whether in high-pressure or violent environments, combination screws excel in providing reliable and secure fastening solutions.

Wide Range of Applications

Combination screws find extensive applications across different industries and settings. Whether it is in construction, automotive, electronics, mechanical manufacturing, or other fields, combination screws meet various requirements and deliver outstanding connection performance. They can be utilized for securing components, assembling equipment, or protecting valuable items, among many other applications.

productcate-1-1
Phillips Slot Combination Screw

Error Reduction

The installation process of combination screws is simpler and more straightforward compared to traditional screws. This reduces the likelihood of errors during assembly. Installation personnel can easily follow a few simple steps and use standard tools to complete the assembly within a few steps. This minimizes human errors and the risk of assembly failures, thereby increasing the success rate of assembly operations.

Enhanced Production Efficiency

The convenience of assembly provided by combination screws significantly reduces the time required for assembly. This allows production lines to operate more efficiently, speeding up the overall production process. By saving time and reducing waiting periods, combination screws contribute to improved production efficiency and lower production costs.

 

 

Specification

 

 

Standard

DIN

Name

Combination Screw

Material

Carbon steel and alloy steel, etc.

Grade

Grade 4.8, Grade 5.8, Grade 8.8

Nominal diameter

M2-M48

Pitch

0.4-5

Surface treatment

ZP,YZ,BLACK

 

Application of Combination Screw
 
 
 

Woodworking field

In woodworking, combination screws are frequently utilized to assemble furniture, ensure structural integrity in cabinetry, and even in framing real estate projects. The clean finish provided by flat or oval heads ensures that screws do not detract from the overall aesthetic of the furniture or installation. Woodworkers benefit from the option of using self-tapping screws that eliminate pre-drilling, thus speeding up the assembly process without sacrificing quality.

 
 

Manufacturing

Beyond woodworking, combination screws also find their relevance in metalworking applications. Manufacturing sectors often require fixtures and machined parts to hold together under various forces. The robust design of combination screws ensures a secure connection, making them ideal for demanding environments like automotive or aerospace engineering.

 
 

Home Improvement Project

Home improvement projects are another area where combination screws excel. Whether hanging shelves, securing brackets, or performing general repairs, the convenience of having a screw that accommodates both types of drivers makes it a go-to option for casual DIY enthusiasts and professional contractors alike.

 
 

Electronics Industry

Combination screws contribute significantly in the assembly of appliances, devices, and machinery. The electronics sector often leverages the advantages of combination screws to provide secure yet serviceable fittings. Craftsmanship quality is essential for product reliability, and the durability of combination screws plays a crucial role in ensuring that appliances withstand the test of time.

 

 

2
Best Practices for Using Combination Screws

When using combination screws, it is first essential to choose the right type for the specific application. Consider the material you are working with and select a screw made from a compatible material. For outdoor applications, stainless steel screws are often recommended due to their corrosion resistance. If you are working with softer woods, ensure the use of screws that are less likely to split the material, like those with a tapered tip.

Secondly, ensure that you are using the right size of screw for the job. Using screws that are too short may not provide the necessary holding strength, while oversized screws can damage the material and lead to structural weaknesses. Generally, a good practice is to consult reference guides for the appropriate length and diameter based on your application's specifics, such as load requirements and material type.

Proper driving technique is also fundamental to ensuring the longevity and effectiveness of combination screws. If you opt for self-tapping screws, be sure to apply sufficient pressure while tightening and ensure that the screw enters straight. This will help prevent cross-threading, which can lead to a compromised hold — a crucial factor for applications requiring high durability.

When driving screws into hardwoods, it is often useful to drill pilot holes to avoid splitting. For metals, the use of lubrication can facilitate smoother screwing, enhancing efficiency and reducing wear on both the screw and the tools used.

Finally, regular inspections and maintenance of projects involving combination screws can also greatly extend the life of the fastener. Over time, materials may shift or settle, potentially loosening screws. Periodically checking and tightening screws can uphold the integrity of the project, ensuring that it remains reliable and safe.

 

 

Packaging and Shipping

 

 

p20250414113337f1678.png (745×365)

 

 

FAQ

 

 

Q: I need a customized fastener, but it's not on your website. What do I do?

A: Please send us your request with detailed drawings or photos, then we will make the quotation for you accordingly.

Q: In general, how long can delivery be made after receiving an order?

A: Regular orders can be completed and shipped within 15-20 working days after receiving the deposit and confirming product details.

Q: During the product usage process, if we encounter technical problems, can you provide technical support?

A: Sure. We have a professional technical team that can provide you with technical consultation and guidance through methods such as telephone, email, or video conference.

Q: What is the packaging method of the product?

A: 50KG bag and pallet.

Q: What are combination screws?

A: Combi head screws have heads that can be driven by more than one type of tool.They are externally threaded fasteners with torquing heads, meaning they're screwed into a hole or a piece of material to hold it in place.

Q: How do you determine the screw pitch of a unified screw thread?

A: The thread pitch can also be calculated by measuring the entire length of the thread on a screw and then counting the total number of threads. The length of the thread is then divided by the total number of threads to calculate the pitch.

Q: What is a screw a combination of?

A: A screw is a combination of an inclined plane and a cylinder. It's essentially an inclined plane wrapped around a cylinder. This design allows for the conversion of rotational motion into linear motion, making it useful for fastening and securing objects.

Q: Which screws are stronger?

A: Screws are made of different materials, including stainless steel, zinc or brass. Stainless steel screws are commonly used outside because they're strong and corrosion resistant, whilst brass screws are softer and better suited for indoor projects.

We're professional combination screw manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized combination screw made in China here from our factory. Contact us for quotation.

combination screw, Wood Screw Combination, Phillips Slot Combination Screw
Send Inquiry