Hex Bolt
Your Professional Hex Bolt 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.
Benefits of Hex Bolts
Secure Fastening
Hexagon bolts provide a reliable and secure fastening solution. The hexagonal head design allows for better torque transmission and minimises the risk of slippage during installation and removal. This ensures the bolt remains tightly secured, reducing the chances of loosening or failure.
High Tensile Strength
Hexagon bolts, with their high-strength materials like steel or stainless steel, offer excellent tensile strength. This makes them capable of withstanding heavy loads and high tension levels, providing robust and durable connections in demanding applications.
Ease of Installation
The hexagonal shape of the bolt head allows for easy engagement with a corresponding hex wrench or socket. The design facilitates quick and efficient installation, saving time and effort during assembly or repairs. Additionally, hexagon bolts can be used with pre-tapped holes, streamlining the installation process.
Versatility
Hexagon bolts are available in various sizes, lengths, and thread types. Their compatibility with different thread sizes and diameters makes them versatile for various applications. They can accommodate different materials, thicknesses, and components, allowing for flexibility in design and construction projects.
Standardisation
Hexagon bolts adhere to standard sizing and thread specifications, such as metric or imperial measurements. This standardisation ensures interchangeability and compatibility between different manufacturers and systems. The availability of various thread sizes and diameters allows for precise selection and compatibility with pre-tapped holes.

Standard Hex Bolts
Standard hex bolts are the most common type, featuring a hexagonal head and fully or partially threaded shafts.
Heavy Hex Bolts
Heavy hex bolts have a larger, thicker head than standard hex bolts, offering added strength.
Hex Lag Bolts
Also known as lag screws, these bolts have a hex head and a pointed end for direct installation into wood.
Flange Hex Bolts
Flange hex bolts have a built-in washer-like flange under the head, which distributes the load evenly.
Metric Hex Bolts
Metric hex bolts follow metric sizing standards, often specified for international projects or in countries that use the metric system.
Application of Hex Bolt
Construction
Hex bolts are frequently used in construction for joining structural components (Fig. 3) like beams, columns, and trusses. They provide the necessary strength and stability to support heavy loads and ensure the safety of the structure.
Automotive and Machinery
In the automotive and machinery industries, hex bolts are used to assemble engine components, chassis parts, and machinery frames. Their durability and strength are crucial for maintaining the integrity of these systems.
Manufacturing
Hex bolts are employed in manufacturing processes for assembling machinery, equipment, and production lines. They ensure that the parts are securely fastened together, preventing malfunction and improving overall operational efficiency.
Electronics
In electronics manufacturing, hex bolts are utilized for securing components within equipment and devices. Their small size makes them suitable for applications where space is limited.
Aerospace and Aviation
The aerospace industry relies on hex bolts for assembling aircraft components, engines, and critical systems. The high strength and reliability of hex bolts are crucial for ensuring the safety of air travel.
Marine and Shipbuilding
Hex bolts are essential for marine applications due to their resistance to corrosion in saltwater environments. They are used in shipbuilding, boat construction, and offshore structures.
Railways and Transportation
Hex bolts are used in the construction and maintenance of railway tracks, bridges, and transportation infrastructure to ensure safety and stability.
Oil and Gas Industry
Hex bolts are employed in the oil and gas sector for assembling equipment, pipelines, and infrastructure in both onshore and offshore facilities.
Hex Bolt Size Chart
|
Thread Size |
Thread Diameter |
Threaded Shank Length (up to 125mm) |
Threaded Shank Length (125-200mm) |
Threaded Shank Length (200+mm) |
Head Width |
Thread Width |
|
M4 |
0.7 |
14mm |
n/a |
n/a |
2.8 |
7 |
|
M5 |
0.8 |
16mm |
22mm |
n/a |
3.5 |
8 |
|
M6 |
1 |
18mm |
24mm |
n/a |
4 |
10 |
|
M8 |
1.25 |
22mm |
28mm |
n/a |
5.3 |
13 |
|
M10 |
1.5 |
26mm |
32mm |
45mm |
6.4 |
17 |
|
M12 |
1.75 |
30mm |
36mm |
49mm |
7.5 |
19 |
|
M14 |
2 |
34mm |
40mm |
53mm |
8.8 |
22 |
|
M16 |
2 |
38mm |
44mm |
57mm |
10 |
24 |
|
M20 |
2.5 |
46mm |
52mm |
65mm |
12.5 |
30 |
Customization

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FAQ
As one of the leading hex bolt manufacturers and suppliers in China, we warmly welcome you to wholesale bulk hex bolt in stock here and get pricelist from our factory. All customized products are with high quality and competitive price.
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