Nut
Your Professional Nut 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 Nut
Ease of Use
Nuts and bolts are known for their ease of installation and removal. The threaded design allows for quick and simple fastening, and they can be easily loosened and tightened as needed.
Strong Connections
When used with appropriate bolts, nuts create secure and reliable connections, ensuring stability and preventing components from loosening or becoming detached.
Versatility
Nuts come in various shapes, sizes, and materials (like steel, brass, or plastic), making them suitable for a wide range of applications, from home DIY projects to heavy-duty construction.
Aesthetics
Some nuts, like cap nuts, can be used to provide a finished, clean look, especially in applications where exposed fasteners are not desired.
Durability
High-quality nuts, especially those made from corrosion-resistant materials, can withstand harsh conditions and provide long-lasting performance.
Even Weight Distribution
When properly installed, nuts and bolts can distribute weight evenly among them, contributing to structural integrity.
Applications Of Nuts
Bolts and nuts find applications in a wide range of industries, including automotive, aerospace, construction, machinery, manufacturing, and many others. Some common applications of bolts and nuts include:
Automotive
Bolts and nuts are used in the manufacturing and assembly of automobiles, including engines, transmissions, chassis, suspension systems, and more.
Aerospace
Bolts and nuts are crucial in the aerospace industry, where high-performance fasteners are required to withstand extreme temperatures, vibrations, and loads.
Construction
Bolts and nuts are used in construction projects for joining structural components, such as steel beams, columns, and concrete forms, to ensure stability and safety.
Machinery
Bolts and nuts are used in the manufacturing of machinery and equipment, such as engines, pumps, turbines, and conveyor systems.
Types of Nuts
Hex Nuts
Hex nuts are probably the most commonly used hex nuts in the world. Thanks to their hexagonal shape, installation and removal can be done conveniently and quickly with standard wrenches and other tools.
Jam Nuts
Jam nuts are hexagonal low-profile fasteners, usually half the height of standard nuts. They're vibration-resistant and often used to lock another nut in place by being tightened against it, thus preventing the main nut from coming loose.
Cap Nuts
Cap nuts (sometimes also called acorn nuts) are easily recognized by their domed head, which covers exposed threads, adding more protection and improving their visual appearance.
Flange Nuts
Flange nuts have a built-in washer-like flange that distributes pressure more evenly over the surface and protects the fastened components. This eliminates the need to use separate washers, making the installation process easier and faster.
Coupling Nuts
Coupling nuts, also known as extension nuts, are fasteners used to join two male threaded components, most commonly threaded rods. They essentially function as connectors, allowing you to extend the length of a threaded rod or connect two separate rods together.
Wing Nuts
Wing nuts (thumb nuts, butterfly nuts) can be easily distinguished by their two wing-like projections that allow for easy tightening or loosening by hand without the need for any tools.
Lock Nuts
Lock nuts are secure fasteners designed to resist loosening under vibration, shock, or dynamic loads. Unlike standard nuts that rely solely on friction between the threads and the bearing surface to stay tight, lock nuts incorporate various mechanisms to enhance their resistance to loosening.
Product Parameters
|
Ominal Size |
F |
C |
H |
Weight |
|||||
|
Width Across Flats |
Width Across Corners |
Thickness |
|||||||
|
Basic |
Max |
Min |
Max |
Min |
Basic |
Max |
Min |
||
|
3/8 |
11/16 |
0.688 |
0.669 |
0.794 |
0.763 |
23/64 |
0.377 |
0.341 |
0.03 |
|
1/2 |
7/8 |
0.875 |
0.850 |
1.010 |
0.969 |
31/64 |
0.504 |
0.464 |
0.07 |
|
5/8 |
1-1/16 |
1.062 |
1.031 |
1.227 |
1.175 |
39/64 |
0.631 |
0.587 |
0.12 |
|
3/4 |
1-1/4 |
1.250 |
1.212 |
1.443 |
1.382 |
47/64 |
0.758 |
0.710 |
0.20 |
|
7/8 |
1-7/16 |
1.438 |
1.394 |
1.660 |
1.589 |
55/64 |
0.885 |
0.833 |
0.30 |
|
1 |
1-5/8 |
1.625 |
1.575 |
1.876 |
1.796 |
63/64 |
1.012 |
0.956 |
0.43 |
|
1-1/8 |
1-13/16 |
1.812 |
1.756 |
2.093 |
2.002 |
1-7/64 |
1.139 |
1.079 |
0.59 |
|
1-1/4 |
2 |
2.000 |
1.938 |
2.309 |
2.209 |
1-7/32 |
1.251 |
1.187 |
0.79 |
|
1-3/8 |
2-3/16 |
2.188 |
2.119 |
2.526 |
2.416 |
1-11/32 |
1.378 |
1.310 |
1.02 |
|
1-1/2 |
2-3/8 |
2.375 |
2.300 |
2.742 |
2.622 |
1-15/32 |
1.505 |
1.433 |
1.31 |
|
1-5/8 |
2-9/16 |
2.562 |
2.481 |
2.959 |
2.828 |
1-19/32 |
1.632 |
1.556 |
1.62 |
|
1-3/4 |
2-3/4 |
2.750 |
2.662 |
3.175 |
3.035 |
1-23/32 |
1.759 |
1.679 |
2.04 |
|
1-7/8 |
2-15/16 |
2.938 |
2.844 |
3.392 |
3.242 |
1-27/32 |
1.886 |
1.802 |
2.41 |
|
2 |
3-1/8 |
3.125 |
3.025 |
3.608 |
3.449 |
1-31/32 |
2.013 |
1.925 |
2.99 |
|
2-1/4 |
3-1/2 |
3.500 |
3.388 |
4.041 |
3.862 |
2-13/64 |
2.251 |
2.155 |
4.19 |
|
2-1/2 |
3-7/8 |
3.875 |
3.750 |
4.474 |
4.275 |
2-29/64 |
2.505 |
2.401 |
5.64 |
|
2-3/4 |
4-1/4 |
4.250 |
4.112 |
4.907 |
4.688 |
2-45/64 |
2.759 |
2.647 |
7.38 |
|
3 |
4-5/8 |
4.625 |
4.475 |
5.340 |
5.102 |
2-61/64 |
3.013 |
2.893 |
9.50 |
|
3-1/4 |
5 |
5.000 |
4.838 |
5.774 |
5.515 |
3-3/16 |
3.252 |
3.124 |
11.94 |
|
3-1/2 |
5-3/8 |
5.375 |
5.200 |
6.207 |
5.928 |
3-7/16 |
3.506 |
3.370 |
15.26 |
|
3-3/4 |
5-3/4 |
5.750 |
5.562 |
6.640 |
6.341 |
3-11/16 |
3.760 |
3.616 |
18.12 |
|
4 |
6-1/8 |
6.125 |
5.925 |
7.073 |
6.755 |
3-15/16 |
4.014 |
3.862 |
21.80 |
Customization Process
Packaging and Shipping
FAQ
As one of the leading nut manufacturers and suppliers in China, we warmly welcome you to wholesale bulk nut in stock here and get pricelist from our factory. All customized products are with high quality and competitive price.
