1. Definition of carriage bolt

Carriage bolts are divided into large semi-round head carriage bolts (corresponding to standards GB/T14 and DIN603) and small semi-round head carriage bolts (corresponding to standard GB/T12-85) according to the head size. Carriage bolt is a type of fastener consisting of a head and a screw (a cylinder with external threads). It needs to be matched with a nut and is used to fasten two parts with through holes.

2. Material of carriage bolts

Carriage bolts not only provide a secure connection but also provide protection against theft. At Chengyi, we offer carriage bolts in both stainless steel and carbon steel materials to suit a variety of needs and applications.

3. Application of carriage bolts

Carriage bolts are designed to fit into a tight-fitting groove in the square neck of the bolt. This design prevents the bolt from rotating, ensuring a secure connection. Additionally, the carriage bolt can move parallel within the slot for easy adjustment.

Unlike other bolts, carriage bolts have round heads without any cross-recessed or hexagonal openings for power tools. The lack of an easy-to-operate drive feature makes it more difficult for potential thieves to tamper with or remove the bolts.

High-strength carriage bolts also offer greater durability and resiliency. And since modern machinery often operates continuously, high-strength carriage bolts are designed to withstand constant rotation and provide a reliable and durable connection.