Carriage Bolts
A carriage bolt consists of mushroom head and screw (with external threads), it needs matching with nut to fasten and connect two parts with through holes. One of the widely used carriage bolts is standard DIN603 with metric M5 to M20 thread.
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PRODUCT INTRODUCTION
Carriage Bolts: The Ideal Solution for Your Fixing Needs

 

If you are looking for a reliable and durable solution for your fixing needs, Carriage Bolts are the perfect choice for you. Our high-quality bolts are designed to provide a secure and stable hold for a wide range of applications, from construction to furniture assembly and beyond. With their easy-to-use design and exceptional strength, Carriage Bolts are the ultimate solution for your fixing needs.

 

Product Description

 

Carriage Bolts are a type of bolt that is designed with a cylindrical head and a square neck. The square neck is designed to prevent the bolt from turning when it is tightened and provides a secure and stable hold. The cylindrical head is smooth and round, providing a clean and finished look to your project.

 

Our Carriage Bolts are made from high-quality steel that has been heat-treated to provide exceptional strength and durability. We offer a wide range of sizes and diameters to accommodate your needs, making it easy to find the perfect bolt for your project.

 

Why Choose Carriage Bolts?

 

There are many reasons why Carriage Bolts are the ideal solution for your fixing needs. First and foremost, our bolts are exceptionally strong and durable, ensuring that they will provide a secure hold for your project. They are also incredibly easy to use, allowing you to quickly and easily install them without any special tools or expertise.

 

Another advantage of Carriage Bolts is their versatility. They can be used for a wide range of applications, from construction to furniture assembly and beyond. They are particularly useful for projects where stability and security are critical, such as outdoor structures, bridges, and other large-scale projects.

 

In addition to their strength and versatility, Carriage Bolts are also incredibly cost-effective. They are available at a competitive price point, making them an affordable option for any project.

 

Applications

 

Carriage Bolts are ideal for a wide range of applications, including:

 

Construction

 

Furniture assembly

 

Structural applications

 

Outdoor structures (such as bridges, decks, and pergolas)

 

Industrial equipment

 

And more!

 

With their exceptional strength and versatility, Carriage Bolts are the ultimate solution for your fixing needs.

 

Conclusion

 

If you are looking for a reliable and durable solution for your fixing needs, Carriage Bolts are the perfect choice for you. Our high-quality bolts are designed to provide a secure and stable hold for a wide range of applications, from construction to furniture assembly and beyond. With their easy-to-use design and exceptional strength, Carriage Bolts are the ultimate solution for your fixing needs.

 

Contact us today to learn more about Carriage Bolts and how they can benefit your project!

 

What is a carriage bolt? The carriage bolt actually refers to the round head square neck bolt. Its main structure is the head and the screw rod. Like most fasteners, it needs to be used in conjunction with the nut to connect two parts with through holes for fastening. effect. Moreover, because of its unique square neck structure, the carriage bolts are often used in the groove. During the installation process, the square neck is stuck in the groove to prevent the bolt from rotating, but it will not affect its horizontal movement, and thanks to the round head on the square neck , and can make it play the role of anti-theft in actual work.

 


Types of Carriage bolts


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Large half round head carriage bolts (corresponding to standard GB/T14-8 and DIN603)

The large semi-round head carriage bolt is composed of a large semi-round head and a screw rod, and acts in the groove. When installing, the square neck can be stuck in the groove to prevent the bolt from rotating, but it will not affect the parallel movement of the bolt in the groove. And because the head is round, there is no place for loading and unloading tools such as cross recesses, so it can also play a certain role in preventing theft in practical applications.

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Small round head carriage bolts (corresponding to standard GB/T12-85)

The small semi-round head carriage bolt is composed of a small round head and a screw rod, acting in the groove. The square neck can be stuck in the groove during installation to prevent the bolt from rotating, but it will not affect the parallel movement of the bolt in the groove. And because the head is round, there is no place for loading and unloading tools such as cross recesses, so it can also play a certain role in preventing theft in practical applications. Comparing the large semi-round head carriage bolts, the functions of the two are basically the same, and the difference is only in the different usage scenarios.


Feature and Advantage


Because of its unique round head and square neck structure, carriage bolts have great advantages in specific use scenarios. They have the advantages of easy installation, not easy to loosen and anti-theft to a certain extent. Carbon steel carriage bolts made of carbon steel as raw materials It also has excellent tensile strength and toughness, and can adapt to complex environments. The stainless steel carriage bolts made of stainless steel have good corrosion resistance and greatly prolong the service life.


Production Process of Carriage Bolts


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Specification of Carriage Bolts


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d

M5

M6

M8

M10

M12

M16

M20

P

0.8

1

1.25

1.5

1.75

2

2.5

b

L≤125

16

18

22

26

30

38

46

125<L≤200

22

24

28

32

36

44

52

L>200

-

-

41

45

49

57

65

dk

max

13.55

16.55

20.65

24.65

30.65

38.8

46.8

min

12.45

15.45

19.35

23.35

29.35

37.2

45.2

ds

max

5

6

8

10

12

16

20

min

4.52

5.52

7.42

9.42

11.3

15.3

19.16

k1

max

4.1

4.6

5.6

6.6

8.75

12.9

15.9

min

2.9

3.4

4.4

5.4

7.25

11.1

14.1

k

max

3.3

3.88

4.88

5.38

6.95

8.95

11.05

min

2.7

3.12

4.12

4.62

6.05

8.05

9.95

r1

10.7

12.6

16

19.2

24.1

29.3

33.9

r2

max

0.5

0.5

0.5

0.5

1

1

1

r3

max

0.75

0.9

1.2

1.5

1.8

2.4

3

s

max

5.48

6.48

8.58

10.58

12.7

16.7

20.84

min

4.52

5.52

7.42

9.42

11.3

15.3

19.16


Common Grade and Coating


Standard

Material

Grade

Finish

Thread

DIN933 DIN931 ISO4014 ISO4017 ASME B 18.2.1

carbon steel

4.6 4.8 5.8 8.8 10.9 12.9 A2-70 A4-70

Plain

UNC

Zinc plated

Alloy steel

Yellow zinc plated

PTFE

Stainless steel

Black Oxide

UNF

Dacromet

Other

HDG

Other



Application Area of Carriage Bolts


Because of its unique shape, the carriage bolt has a wide range of applications. Such as electronics manufacturing, mechanical equipment manufacturing. Carriage bolts are used in chemical industry, valve industry and automobile industry. The carriage bolt is very suitable for fixing wood to metal. Alternatively, square neck carriage bolts can be used to hold the two pieces of wood together. There are also special versions of carriage bolts that effectively fasten two separate metal parts together. In addition, they can be used in a variety of different industries including water industry, railway industry, agriculture and mining.

If you are not clear about your usage scenario, you can consult our customer service. As a professional machine screw manufacturer, we can provide you with reasonable suggestions.


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Why choose us?

  • We ensure that all our Carriage Bolt products are delivered on time and in perfect condition.
  • We always practice the core concept of "customer first, efficient execution, continuous improvement, and win-win cooperation".
  • We offer free samples of our Carriage Bolt products to help customers make informed decisions.
  • We can effectively control costs and continuously improve productivity.
  • Our Carriage Bolt products are backed by our commitment to quality and customer satisfaction.
  • We have noticed that with the economic growth, the industrial structure is accelerating the transition from simple labor-intensive products to capital and technology-intensive products and self-owned brands and self-developed products.
  • Our team of experts can help you choose the right Carriage Bolt products for your specific needs.
  • Our company constantly carries out technological innovation and new Carriage Bolts development to stabilize and improve our market position.
  • We're committed to providing affordable, high-quality Carriage Bolt products to our customers.
  • We actively expand the application fields of our Carriage Bolts to provide higher quality materials for the society.
FAQ

Q1:Can you send samples?
A1:Of course, we can provide samples and courier services to customers around the world.
Q2:What if I have no import experience?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.

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