Web Menu

Product Search

Language

Share

Home / Products / Bolts / Carriage Bolts
Product

Product Category

Contact Us

We are a professional fastener manufacturer

+86-19357628705
+86-13018945250

Carriage Bolts Manufacturers

Carriage bolts are divided into large half round head carriage bolts (corresponding to standards GB/T14 and DIN603) and small half round head carriage bolts (corresponding to standards GB/T12-85) based on their head size. A carriage bolt is a type of fastener consisting of a head and a screw (a cylindrical body with external threads), which needs to be matched with a nut to securely connect two parts with through holes.

1、 Material characteristics
1.1 Common materials for carriage bolts: carbon steel, alloy steel, stainless steel, brass, etc.
1.2 The strength of carriage bolts varies among different materials, generally divided into high strength, medium strength, and ordinary grades.
1.3 Carbon steel carriage bolts have low strength and are suitable for low strength situations; Alloy steel and stainless steel carriage bolts have high strength and are suitable for high-strength and corrosion-resistant situations.
2、 Shape characteristics
2.1 Carriage bolts are divided into hexagonal head, round head, flat head, wedge-shaped head, etc. according to the shape of the head.
2.2 Carriage bolts with different head shapes are suitable for different occasions, such as hexagonal heads, which are suitable for situations that require high torque, anti sliding, and anti loosening; Round and flat heads are suitable for occasions that require a neat appearance and prevent injury.
3、 Process characteristics
3.1 The production process of carriage bolts includes forging, heat treatment, cutting, turning, grinding, etc.
3.2 Different processing techniques have an impact on the strength, corrosion resistance, and surface finish of carriage bolts.
4、 Mechanical characteristics
4.1 Carriage bolts mainly bear positive tension or pressure, as well as partial bending and shear forces. It is necessary to pay attention to the bearing capacity of these forces and choose appropriate carriage bolts.
4.2 Carriage bolts have good durability and can be disassembled and installed multiple times.
When assembling carriage bolts, attention should be paid to the correct torque and pre tightening force to improve the service life of carriage bolts.

Our products are made of carbon steel and stainless steel, with a metric diameter of M4-M16and a length of 8-360, and an American diameter of 1/4-5/8 inches and a length of 5/8-5 inches. Welcome to inquire and purchase!

about us

Hangzhou Jiangxin Industry Co., Ltd. was established in 2004. It is a national high-tech enterprise and a scientific and technological enterprise in Zhejiang Province. It is a professional fastener manufacturer, integrating production, R&D, and sales. It has advanced fastener production equipment in the world and uses an advanced ERP system for management. OEM/ODM Carriage Bolts Manufacturers and Carriage Bolts Factory.

The company has passed the IS09001 international quality management system certification and has distribution outlets and logistics distribution centers in East China. The company specializes in the production and operation of standard and non-standard parts such as German standard (DIN), American standard (ANSI, ASME), international standard (ISO), national standard (GB), Japanese standard (JIS), and British standard (BSW), high-strength bolts, and high-grade expansion bolts. The materials involve various carbon steels and stainless steels (304 and 316). The products are widely used in the fields of high-speed railway, automobile, ship, machinery, mold, electronics, and construction. Carriage Bolts Wholesale. With its good performance, fast installation, beautiful appearance, stable compatibility, and many other advantages, it is favored by Chinese and foreign merchants.

News center

Flat head hex socket bolt： Structural characteristics, application scenarios, and selection guidelines What is a Flat Head Hex Socket Bolt? A Flat Head Hex Socket Bolt is a fastener with a 90° conical head. The screw head can be completely embedded in the workpiece surface. After ...-14 Mar 2025
Jiangxin Time: Why are flange bolts and nuts becoming more and more popular? In the family of hardware fasteners, flange bolts and flange nuts have been increasingly favored in industrial and daily applications in recent years due to their excellent perform...-07 Mar 2025
Jiangxin Time: How to choose the right hexagon socket fasteners Hexagon socket In the fastener family, hexagon socket bolts are widely used in machinery, equipment, electronics and other fields due to their advantages such as simple installati...-28 Feb 2025
Jiangxin Time: Hexagon Head Bolts and Countersunk Head Bolts Among hardware fasteners, there are many types of bolts, and hexagon head boltss and countersunk bolts are two common types. Although they are both used to connect parts, they have...-21 Feb 2025

Industry Knowledge

Why are carriage bolts so important in construction and manufacturing?

When it comes to connectors in construction and manufacturing, carriage bolts are one thing that cannot be ignored. While they may not look much different from other bolts, they play a key role in making the structure strong and safe. This article will take an in-depth look at the uses, features, and selection factors of carriage bolts to help you understand the importance of these little guys.

Carriage bolts are a common type of connection used in a variety of projects in construction and manufacturing. Whether it is bridges, buildings or machinery, carriage bolts play a key role. Their main purpose is to provide strong connections to ensure structural stability and safety. Carriage bolts are the first choice of engineers and manufacturers due to their reliability and versatility.

The reason carriage bolts are so popular in construction and manufacturing is because they have some unique features. First, carriage bolts have round heads with square shoulders, which makes them easier to tighten and loosen. Secondly, carriage bolts can provide greater shear resistance due to their square necks, making the connection stronger. When selecting carriage bolts, factors such as material, size and application environment need to be considered. Depending on the needs of the specific project, suitable materials such as stainless steel, carbon steel, etc. can be selected, as well as the appropriate size and strength grade.

When using carriage bolts, there are some expert recommendations and best practices that can help you ensure the quality and security of your connection. First, proper installation steps should be followed to ensure that the bolts are tightened correctly. Secondly, the tightening status of bolts should be checked regularly and maintained and replaced in a timely manner. Finally, choose the appropriate bolt type and material to suit different application scenarios and environmental conditions. Follow these expert tips to improve the reliability and durability of your connections.

Although carriage bolts may be overlooked in construction and manufacturing, they play a key role in ensuring structural stability and safety. By thoroughly understanding the uses, features and selection factors of carriage bolts, and by following expert advice and best practices, we can ensure the quality and durability of your connections. Whether as engineers or manufacturers, we should value the importance of carriage bolts and make wise choices.