Bolt Manufacturer | Wholesale Cap Head Bolt | OEM Bolt

Huizhou Zeyao Hardware Products Co., Ltd. is a professional factory specializing in custom fastener manufacturing, possessing a complete production system and mature quality control processes. We have long provided global customers with various non-standard and high-precision fastener solutions, covering products such as screws, bolts, nuts, washers, pins, shims, standoffs, rivets, CNC milling parts, and CNC turning parts.
Our fasteners are widely used in many industries with extremely high requirements for quality and reliability, including automotive manufacturing, electronics, construction engineering, aerospace, industrial machinery, medical devices, furniture manufacturing, home furnishings, and rail transportation.
As a fastener manufacturer with 19 years of production experience, Zeyao always adheres to manufacturing as its core focus, rather than simply supplying products. For many years, we have focused on the research and development and customized production of non-standard Cap Head Bolts, deeply understanding their practical application requirements in high-strength assembly, high-precision equipment, and space-constrained structures.
From material selection and structural design to processing technology and surface treatment, we can provide customers with stable, traceable, and scalable Cap Head Bolt solutions.
Factory area
Production experience
Production equipment
Partners
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Allen Key Stud BoltThe Allen key stud bolt features a unique cup-shaped head, which enhances the torque and power transfer, reducing the resistance between the bolt and the tool. This design makes them tightening...view more
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Slotted Shoulder BoltMaterial: Carbon steelview more
Size: Customizable
Customization: OEM/ODM
Manufacturer: Zeyao
MOQ: Negotiable -
12-Point BoltThe 12-point bolt features a unique head with 12 sides, which makes it with superior torque resistance and rotational accuracy than traditional hex bolts. With its 12-point structure, this bolt...view more
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Through Hole Cap BoltThe through-hole cap bolt with a through hole passed the thread, which uses the friction and pressure of the threads to create a strong connection. This design makes the bolt effective for...view more
Specification
|
Size |
Pitch |
Dk |
K |
S |
T |
|||
|
Max |
Min |
Max |
Min |
Max |
Min |
Min |
||
|
M1.4 |
0.3 |
2.74 |
2.46 |
1.4 |
1.26 |
1.36 |
1.32 |
0.6 |
|
M1.6 |
0.35 |
3.14 |
2.86 |
1.6 |
1.46 |
1.56 |
1.52 |
0.7 |
|
M2 |
0.4 |
3.98 |
3.62 |
2 |
1.86 |
1.56 |
1.52 |
1 |
|
M2.5 |
0.45 |
4.68 |
4.32 |
2.5 |
2.36 |
2.06 |
2.02 |
1.1 |
|
M3 |
0.5 |
5.68 |
5.32 |
3 |
2.86 |
2.58 |
2.52 |
1.3 |
|
M4 |
0.7 |
7.22 |
6.78 |
4 |
3.82 |
3.08 |
3.02 |
2 |
|
M5 |
0.8 |
8.72 |
8.28 |
5 |
4.82 |
4.095 |
4.02 |
2.5 |
|
M6 |
1 |
10.22 |
9.78 |
6 |
5.7 |
5.14 |
5.02 |
3 |
|
M8 |
1.25 |
13.27 |
12.73 |
8 |
7.64 |
6.14 |
6.02 |
4 |
|
M10 |
1.5 |
16.27 |
15.73 |
10 |
9.64 |
8.175 |
8.025 |
5 |
|
M12 |
1.75 |
18.27 |
17.73 |
12 |
11.57 |
10.18 |
10.025 |
6 |
|
M14 |
2 |
21.33 |
20.67 |
14 |
12.57 |
12.21 |
12.032 |
7 |
|
M16 |
2 |
24.33 |
23.67 |
16 |
15.57 |
14.21 |
14.032 |
8 |
|
M20 |
2.5 |
30.33 |
29.67 |
20 |
19.48 |
17.23 |
17.05 |
10 |
Types of Cap Head Bolt
The cap head bolts produced by our company mainly include the following types:
Torx Pan Head Bolt
The Torx cup head bolt with a torx groove design effectively increases torque and power transfer, which reduces resistance when connecting the screw, and results in improved tightening strength. The distinctive Torx (star) shape enhances friction, preventing the screw from loosening and ensuring a stable, secure connection.
Slotted Shoulder Bolt
The slotted shoulder bolt with a distinct stepped head which makes it easier to position and apply force with a screwdriver or power tool. This design can improve installation efficiency and enhance the grip between the screw and the tool, ensuring a secure fastening to the materials being connected.
Through Hole Cap Bolt
The through-hole cap bolt with a through hole passed the thread, which uses the friction and pressure of the threads to create a strong connection. This design makes the bolt effective for connecting thin plates, plastic parts, and wooden components.

Advantages of Cap Head Bolt
High Torque Capability
Cap head bolts are designed with a hexagonal head, which provides a larger contact surface for wrenches or sockets. This design allows for higher torque application, making them suitable for heavy-duty applications where tight fastening is required.
Enhanced Stability
The six-sided design of cap head bolts offers improved stability and resistance to loosening compared to other types of fasteners. This makes them ideal for applications subjected to vibration or dynamic loads, providing a secure and reliable fastening solution.
Easy to Use
The hexagonal shape of the head allows for easy and efficient installation using standard tools such as wrenches or ratchets. This simplicity in installation makes cap head bolts a popular choice for a wide range of construction and industrial applications.
Wide Availability
Cap head bolts are readily available in various sizes, materials, and grades, making them versatile for different applications. Whether it's for automotive, construction, or machinery, cap head bolts can be easily sourced to meet specific requirements.
Standardization
Cap head bolts adhere to standard sizes and thread pitches, making them compatible with existing holes and threads in many applications.
Applications of Cap Head Bolt
Furniture Assembly
Cap head bolts are frequently employed in furniture assembly, providing a sleek and low-profile solution that enhances the aesthetics of the finished product.
01
Electronics Enclosures
In electronic devices, cap head bolts are used to secure covers and enclosures, maintaining a smooth exterior while ensuring easy access for maintenance.
02
Automotive Interior Components
Cap head bolts find application in automotive interiors, securing panels, trims, and other components where a neat and unobtrusive appearance is desired.
03
Consumer Electronics
Many consumer electronic devices use cap head bolts for assembly, contributing to a clean and modern design while maintaining structural integrity.
04
Decorative Fixtures
Cap head bolts are chosen for decorative fixtures and ornamental elements, providing a polished look while securely fastening components.
05
Material of Cap Head Bolt
Stainless Steel
Cap head bolts are commonly made from steel because of their resistance, to rust and long-lasting nature – making them a preferred choice, for situations where they may be exposed to moisture or corrosive elements. Stainless steel bolts are known for their durability and ability to withstand high-stress conditions while also adding a touch of elegance to designs that demand a polished look.
Alloy Steel
Alloy steel is a used material, in cap head bolts due to its strength and durability characteristics that enable it to endure intense operational pressures effectively in demanding sectors, like the aerospace and automotive industries.
Titanium
When weight is a factor, in application requirements titanium cap head bolts offer a substitute option to consider. Titanium boasts a strength-to-weight ratio making it a popular choice in sectors like aerospace and marine industries. Despite being pricier, than steel or alloy steels the distinctive qualities of titanium often make the expense worthwhile, especially in demanding high-performance settings.
Packaging and Shipping
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Packaging |
Plastic bag + outer carton + pallets |
|
Shipping |
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc. |
Our Certificate

FAQ
We're professional cap head bolt manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized cap head bolt made in China here from our factory.
Allen Key Stud Bolt, 12 Point Bolt, Through Hole Cap Bolt
