Sanwei:Your Professional Base Nuts 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.
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![Hex Nut]()
Hex NutStandard: DIN934. Name: Hex nut. Material: 304 stainless steel. Grade: Grade 4.8, Grade 5.8, Grade 8.8, Grade 10.9, Grade 12.9 -
![Knurled Nuts]()
Knurled NutsStandard: DIN467. Name: Knurled Nut. Material: carbon steel and alloy steel, etc.. Grade: Grade 4.8, Grade 5.8, Grade 8.8 -
![Hub Bolt Nuts]()
Hub Bolt NutsStandard: DIN74361. Name: Wheel hub bolts and nuts. Material: Carbon steel and alloy steel, etc.. Grade: Grade 8.8, 10.9, 12.9
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 Base Nuts
Strong and Secure Connections:
Weld nuts, for instance, create a permanent joint by welding the nut to the base material.This method provides a robust connection capable of withstanding significant stress and vibrations.
Versatility and Adaptability:
Base nuts come in various shapes and sizes, allowing for compatibility with different materials and geometries.They can be used in thick base materials where traditional threading might not be feasible.
Corrosion Resistance:
Some base nuts, like brass hex nuts, offer natural corrosion resistance due to their material composition.This makes them suitable for outdoor or marine applications where moisture and environmental factors are a concern.
Space Efficiency and Aesthetics:
Clinch nuts, for example, can be installed almost flush with the base material, providing a clean and aesthetically pleasing finish.This can be especially beneficial in applications where visibility or surface finish is important.
Efficiency in Assembly:
Clinch nuts, rivet nuts, and even weld nuts can be installed quickly and efficiently with the right tools. Rivet nuts, in particular, can be installed from one side of the material.
Load Distribution:
Flange nuts, a type of base nut, have a wide flange that distributes load pressure evenly over a larger area.This reduces the risk of damage to the connected parts and enhances the holding strength, especially on softer materials.
Vibration Resistance:
The flange on some base nuts, like flange nuts, can grip better onto surfaces, minimizing loosening due to vibrations.This makes them suitable for machinery, automotive, and other applications where vibrations are common.
Reduced Assembly Errors:
Flange nuts, for example, eliminate the need for separate washers, simplifying the assembly process and reducing installation errors.This can save time and material during assembly.
Reusability:
Some base nuts, like nylon lock nuts, can be reused multiple times without significantly compromising their locking capabilities.This is advantageous in applications where maintenance or component replacements are common.
Specification
|
Standard |
DIN |
|
Name |
Base Nuts |
|
Material |
304 stainless steel |
|
Grade |
Grade 4.8, Grade 5.8, Grade 8.8, Grade 10.9, Grade 12.9 |
|
Nominal Diameter |
M6-M30 |
|
Surface treatment |
ZP,YZ,BLACK |
Application of Base Nuts
Construction
In the construction industry, base nuts are used to secure steel frames, scaffolding, and beams. They are often used in conjunction with high-strength bolts to form load-bearing joints, which are essential for the stability and safety of buildings and other structures.
Automotive
In automotive applications, base nuts are used to secure non-vibration critical components such as chassis components and exhaust systems. They are easy to install and remove, making them ideal for assembly lines and maintenance tasks that require frequent disassembly.
Manufacturing
Base nuts are widely used in mechanical assembly, conveyor systems, and equipment manufacturing. They provide reliable fastening for components that do not require frequent adjustments, ensuring a smooth manufacturing process.
Domestic Appliances
Base nuts are used in furniture, appliances, and other household items for attaching components.
Raw Materials Used in Base Nuts Manufacturing
Steel:
Carbon steel is one of the most commonly used materials for base nuts due to its excellent strength and weldability. Low carbon steel (mild steel) is suitable for general-purpose applications, while high carbon steel offers increased hardness and wear resistance.
Alloy steel, which contains additional alloying elements such as chromium, nickel, or molybdenum, provides enhanced strength and corrosion resistance.
Stainless Steel:
Stainless steel base nuts are highly resistant to corrosion, making them ideal for applications in corrosive environments or where sanitation is critical.
Austenitic stainless steel grades such as 304 (18-8 stainless) and 316 offer excellent corrosion resistance and are commonly used in marine, food processing, and pharmaceutical industries.
Aluminum:
Aluminum base nuts are lightweight and corrosion-resistant, making them suitable for applications where weight reduction and durability are important.
Aluminum alloys such as 6061 and 7075 are commonly used in base nuts manufacturing due to their high strength-to-weight ratio and weldability.
Brass:
Brass base nuts offer good corrosion resistance, electrical conductivity, and aesthetic appeal.
They are often used in decorative or architectural applications where appearance is important, as well as in electrical and plumbing fixtures.
Copper:
Copper base nuts provide excellent electrical conductivity and thermal conductivity.
They are commonly used in electrical and electronic applications, such as grounding connections and electrical panels.
Titanium:
Titanium base nuts offer high strength-to-weight ratio, corrosion resistance, and biocompatibility.
They are used in aerospace, medical, and automotive industries where lightweight yet strong fastening solutions are required.
Process of Base Nuts
Raw Material Preparation:
This involves selecting the appropriate steel wire rod or other raw materials for the nuts.
Cold Heading:
The wire rod is then shaped into the desired form, often using a cold heading process where the material is shaped at room temperature.
Thread Processing:
Threads are created within the formed nut, either by cutting or rolling, depending on the desired thread type.
Heat Treatment:
Heat treatment processes, such as quench and temper, can be applied to enhance the nut's strength and hardness.
Surface Treatment:
Various surface treatments, like plating (e.g., zinc plating, black oxide), can be applied to enhance corrosion resistance, appearance, or other desired properties.
Inspection and Packaging:
Finally, the nuts are inspected to ensure they meet quality standards and are then packaged for distribution.
Cold Forming
This is a preferred method for many nuts, especially in large quantities, and involves a series of forming steps, including pressure forging, cold extrusion, and reducing.
Hot Forming
This method is suitable for larger diameter nuts or nuts that cannot be cold formed, and involves heating the steel to make it malleable before forming.
Forging
Hydraulic hammers are used to shape the steel slug into the hexagonal shape, while a die creates the hole.
Punching
A punching machine can be used to create the initial hole in the nut.
Threading
A thread tap is used to create the threads in the hole.
Packaging and Shipping
FAQ
We're professional base nuts manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized base nuts made in China here from our factory. Contact us for quotation.
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