China Hex Bolt Manufacturers Suppliers Factory - Customized Hex Bolt Made in China

Sanwei:Your Professional Hex Bolt 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.

Theard Rod
DiameterRefers to the nominal outer diameter of the rod, commonly measured in millimeters (mm) or inches (in).Metric examples: M6, M8, M10 (where M denotes metric threads, followed by the diameter in
Hexagon Socket Cheese Head Countersunk Flat Head Screws
Name: Hexagon socket cheese head countersunk flat head screws. Standard:ISO 14581. Material: carbon steel,Stainless Steel and alloy steel,etc.. Grade:Grade 4.8, Grade 6.8, Grade 8.8, Grade 10.9
Hex Socket Head Cap Screws
Name: Hex Socket Head Cap Screws. Standard: DIN912. Material: carbon steel,Stainless Steel and alloy steel,etc.. Grade:Grade 4.8, Grade 6.8, Grade 8.8, Grade 10.9
Stainless Steel Hex Bolts
Grade：A2-70. Nominal Diameter：M2-M48. Pitch：0.4-5. Surface treatment：natural color, polished, passivated.
DIN 912 Hex Bolt
Standard: DIN 912. Name: DIN 912 Hexagon Socket Head Bolts. Material: carbon steel. Grade: Grade 4.8, Grade 5.8, Grade 8.8
DIN6921 M5 M6 M8 M10 M12 Hexagon Flange Bolts
Standard: DIN 6921. Name: Hexagonal flange bolts. Material: carbon steel,Stainless Steel and alloy steel,etc.. Grade:Grade 4.8, Grade 5.8, Grade 8.8,SS201,SS304,SS316
Copper Hex Bolt
Standard: DIN933. Name: Copper hex bolt. Material: Copper alloy. Surface treatment:Copper plating.
DIN 912 Hexagon Socket Head Bolts
Hexagon socket head screw, also known as internal hexagon screw, is a widely used fastener in various mechanical and industrial applications. Their feature is a hexagonal socket on the head, which
Color Zinc Plated GB5789 Flange Bolt
Standard: GB5789. Name: Color zinc plated GB5789 flange bolt. Material: Carbon steel. Grade:10.9.
Enlarged Hexagon Head Flange Bolt
Standard: GB5789. Name: Enlarged hexagon head flange bolt. Material: 304 stainless steel. Grade:4.8.
Carbon Steel Hex Flange Head Bolt
Standard: DIN6921. Name: Carbon Steel Hex Flange Head Bolt. Material: carbon steel. Grade: Grade 4.8, Grade 5.8, Grade 8.8
Innersixanglebolt
Hexagon socket head cap screws, also known as Allen screws, are a type of fastener widely used in various mechanical and industrial applications. They are characterized by a hexagonal socket on the

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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 Hex Bolt

High Torque Capacity

Hex bolts feature six-sided heads, providing a larger contact area for wrenches or socket tools. This design allows for higher torque application and better grip during installation and removal, ensuring efficient and secure fastening.

Versatility

Available in diverse sizes and materials including stainless steel, these versatile fasteners find their utility across a wide spectrum of industries. From construction and machinery to automotive and industrial settings, hex bolts cater to a broad range of applications, meeting the needs of demanding projects.

Secure Fastening

Thanks to their design, hex bolts offer a reliable and secure fit. When properly tightened, they resist loosening, even in high-vibration environments, making them a top choice for critical structural applications.

Durability

Designed to withstand challenging environments, stainless allen bolt are available in a variety of durable materials such as stainless steel, ensuring resistance to corrosion and providing long-term reliability. Whether it's for 5G communication, aerospace, new energy applications, or other demanding sectors, the durability of these bolts is unmatched.

Standardized Sizing

Conforming to industry standards, hex bolts guarantee compatibility with a wide range of nuts, washers, and other hardware components. Their standardized sizing facilitates streamlined integration into various systems, making them a preferred choice for engineers and manufacturers seeking consistency and interchangeability.

Specification

Product name	Hex Bolt
Standard	DIN912/DIN933/GB5789/GBWM
Grade	4.8- 12.9 Ect
Material	Carbon steel,Stainless Steel and alloy steel,etc.
Packing	Carton + Woven Bag +Pallet
Nominal diameter	M4-M36
Length	3mm-3000mm
Surface treatment	ZP,YZ,BLACK,Copper plating
Place of origin	Hebei, China
Standard	ISO,DIN, ANSI/ASME, JIS ,GB, DIN, ISO, ANSI, BS, JIS, GB
Color	Customized Colors

Application of Hex Bolt

DIN6921 M5 M6 M8 M10 M12 Hexagon Flange Bolts

Construction Industry
One of the most common hex bolt uses is in the construction sector. These bolts fasten steel structures, bridges, buildings, and roofing systems, providing high load-bearing capacity and resistance to environmental conditions.

Automotive Sector
In automobile manufacturing, hex bolt uses include securing engine parts, chassis, braking systems, and suspension components. These bolts must withstand vibrations, temperature fluctuations, and mechanical stress.

Machinery and Equipment Manufacturing
Heavy machinery, industrial equipment, and production lines depend on hex bolt uses for secure and stable assembly. These bolts ensure vibration resistance and long-term reliability in gear mechanisms, turbines, and conveyor systems.

Oil and Gas Industry
In oil refineries, drilling rigs, and offshore platforms, hex bolts fasten pipes, valves, flanges, and pressure vessels under extreme conditions. These environments require corrosion-resistant and heat-resistant materials.

Marine and Shipbuilding
The marine industry requires hex bolts that withstand saltwater, humidity, and extreme weather conditions. They are used in ship engines, offshore structures, and underwater piping.

Aerospace Industry
Aircraft and aerospace applications require lightweight yet durable hex bolts that can withstand pressure changes, extreme temperatures, and turbulence. These bolts are used in aircraft engines, landing gears, and wing structures.

Railways and Metro Systems
Hex bolt uses in railway infrastructure include fastening rails, bridges, sleeper plates, and metro structures. These bolts must absorb vibrations and heavy loads while ensuring long-term stability.

Power Plants & Renewable Energy
Hex bolts are widely used in thermal, hydro, nuclear, and renewable energy plants to secure turbines, generators, solar panel frames, and wind turbines. These bolts must handle heat, pressure, and wind forces.

Home Improvement & DIY
For home applications, carpentry, and DIY projects, hex bolt uses include assembling furniture, fences, wooden structures, and metal fittings. These bolts provide sturdy and reliable connections in small-scale projects.

Agricultural & Farming Equipment
The agriculture sector uses hex bolts for tractors, irrigation systems, greenhouses, and plowing equipment. These bolts need to be corrosion-resistant and withstand heavy-duty work.

Material of Hex Bolt

Carbon Steel Hex Bolts:
Carbon steel hex bolts or simply steel hex bolts are widely used due to their affordability and general-purpose characteristics. They come in various grades, such as Grade 2, Grade 5, and Grade 8, each with increasing levels of tensile strength. Carbon steel bolts are suitable for non-corrosive environments and applications where moderate strength is sufficient.

Stainless Steel Hex Bolts:
Stainless steel hex bolts are popular for their excellent corrosion resistance. They are particularly useful in outdoor, marine, and food-related applications where exposure to moisture and harsh conditions is a concern. Common stainless steel grades used for hex bolts include 18-8 (or 304), 316, and 316L.

Alloy Steel Hex Bolts:
Alloy steel hex bolts are alloyed with additional elements to enhance their mechanical properties, such as strength and hardness. These bolts are used in applications that require high tensile strength and resistance to wear and abrasion. Grades such as ASTM A193 B7 and ASTM A325 are examples of alloy steel bolts used in structural and heavy-duty applications.

Brass Hex Bolts:
Brass hex bolts offer corrosion resistance, good electrical conductivity, and an attractive appearance. They are often used in decorative applications, electronics, and plumbing, where corrosion prevention and aesthetics are important.

Bronze Hex Bolts:
Bronze hex bolts are valued for their corrosion resistance, particularly in marine environments. They are used in applications where high strength and resistance to saltwater corrosion are necessary.

Titanium Hex Bolts:
Titanium hex bolts are lightweight, strong, and corrosion-resistant. They are used in applications where weight reduction, high strength, and resistance to chemical environments are critical, such as aerospace and medical equipment.

Galvanized Steel Hex Bolts:
Galvanized hex bolts have a zinc coating that provides a layer of protection against corrosion. They are commonly used in outdoor and construction applications.

Aluminum Hex Bolts:
Aluminum hex bolts are lightweight and corrosion-resistant. They find use in applications where weight reduction and resistance to corrosion are priorities.

Nylon Hex Bolts:
Nylon hex bolts are non-metallic and are used in applications where electrical insulation, low friction, and non-magnetic properties are important.

Plastic Hex Bolts:
Plastic hex bolts, made from various thermoplastic materials, are used in applications that require resistance to chemicals, electrical insulation, and non-corrosive properties.

The Manufacturing Process of Hex Bolts

Raw material selection
Usually, manufacturing hex bolt need to use high-quality steel or stainless steel, this is because these two materials are strength and durability. Workers cut the material into appropriate lengths to form the blank bolts, then heat the blank bolts to make them malleable for further processing.

Bolt head forming
The heads of the bolts are formed with a forging process, the heated blanks will place into a die and struck with a hammer. The hammer forces the metal to fill the die and forms the hexagonal shape of the bolt head. This step is momentous since it determines the strength and shape of the bolt head.

Thread processing
Then the bolt goes to threading process. This involves cutting threads into the shaft of the bolt. There are two common methods for this: rolling and cutting. In rolling, the bolt is pressed between two threaded dies which force the metal to form threads. In cutting, a lathe machine cuts the threads into the bolt shaft. These process produces high-quality threads to ensure a secure fit when the bolt is used.

Thread cutting
Finally, the threads are cut, the bolts' shape are finished. The bolt may heat-treated to increase their hardness and strength and the surface may also be galvanized or plated with zinc to enhance their resistance to rust.

Packaging and Shipping

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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 is your minimum order quantity?

A: Our minimum order quantity (MOQ) varies depending on the bolt type. For standard hex bolts, the MOQ is typically 1,000 pieces per size. This helps us streamline production and cover associated costs. For specialty bolts like custom - designed anchor bolts, the MOQ is around 5,000 pieces due to the complexity of manufacturing. However, we're flexible. If you're ordering a diverse range of bolts, we can negotiate a lower MOQ for each item. For new customers looking to build a long - term relationship, we'll consider reducing the MOQ on a case - by - case basis. For common aluminum bolts, we may set the MOQ as low as 800 pieces to accommodate smaller - scale projects.

Q: How to Loosen Hex Bolts?

A: To loosen hex bolts, use a wrench or socket that fits snugly over the hexagonal head. Apply counterclockwise force to turn the bolt. If the bolt is rusted or stuck, apply penetrating oil and let it sit for a few minutes before trying again. Using a breaker bar or an impact wrench can provide additional leverage and make the job easier.

Q: How to Remove Hex Bolts?

A: To remove hex bolts, first, ensure you have the right size wrench or socket. Turn the wrench counterclockwise to unscrew the bolt. If the bolt is difficult to remove, apply penetrating oil to loosen rust or debris. In cases where the bolt is damaged or stripped, use bolt extractors or cutting tools to remove it safely.

Q: How Are Hex Bolts Made?

A: Hex bolts are made through a multi-step process that includes cutting, forging, threading, and heat treating. Initially, a steel rod is cut to the desired length, then forged to form the hexagonal head. Threads are created by rolling or cutting, followed by heat treatment to enhance strength and durability. Finally, the bolts are coated or plated for corrosion resistance.

Q: How Are Hex Bolts Measured?

A: Hex bolts are measured by their length, diameter, and thread pitch. The length is measured from under the head to the end of the bolt, while the diameter is the width of the bolt's shank. Thread pitch refers to the distance between threads and is typically specified in threads per inch (TPI) or millimeters for metric bolts. Accurate measurements are crucial for ensuring the correct fit in applications.

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

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