Bolt Manufacturer | Wholesale Cap Head Bolt | OEM Bolt

 

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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.

 
3000+

Factory area

 
19+

Production experience

 
160+

Production equipment

 
3500+

Partners

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  • Allen Key Stud Bolt
    The 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...
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  • Slotted Shoulder Bolt
    Material: Carbon steel
    Size: Customizable
    Customization: OEM/ODM
    Manufacturer: Zeyao
    MOQ: Negotiable
    view more
  • 12-Point Bolt
    The 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
  • 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...
    view more
 
Specification

Size
D

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.

 

 

Through Hole Cap Bolt

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

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

 

productcate-1-1

 

 

FAQ

 

Q: What is a cap head bolt?

A: A cap head bolt, also known as a socket - head cap screw, is a type of fastener with a cylindrical head and a hexagonal socket on top. It is used to join two or more components together by threading into a pre - tapped hole.

Q: How does a cap head bolt differ from a regular hex - head bolt?

A: The main difference lies in the head design. A cap head bolt has a hexagonal socket in its head, which requires a hex key (Allen wrench) for tightening and loosening. In contrast, a regular hex - head bolt has a six - sided external head that can be tightened with a wrench. Cap head bolts usually offer a more streamlined appearance and can be tightened to higher torques in some cases.

Q: How do you choose the right size of a cap head bolt?

A: Consider the diameter of the bolt based on the load - bearing requirements of the application. The length should be selected to ensure that the bolt passes through the components being joined and engages sufficiently with the threaded hole. Also, the thread pitch needs to match the existing threading in the hole.

Q: Can cap head bolts be used in high - temperature applications?

A: It depends on the material. Some alloy steel and stainless - steel cap head bolts can withstand high temperatures. For example, certain grades of stainless steel are suitable for use in applications up to several hundred degrees Celsius. However, carbon steel bolts may have limitations in high - temperature environments.

Q: Do cap head bolts require any special tools for installation?

A: Yes, a hex key (Allen wrench) is the primary tool required. There are different sizes of hex keys available to match the socket size of the cap head bolt. For high - torque applications, torque - limiting hex keys or power - driven hex key tools may be used.

Q: Can cap head bolts be removed easily?

A: In most cases, if the bolt has not been over - tightened or corroded, it can be removed using a hex key in the reverse direction of installation. However, if the bolt is seized or damaged, removal may be more difficult and may require the use of penetrating oils, heat, or specialized removal tools.

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
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