The outer hexagon bolt is a very special fastener with a wide range of applications and high performance. Whether it is industrial manufacturing, maintenance, or daily life, we can see it. It gets its name from its shape, which is six corners extending outward to form a hexagonal shape.

1. Types and uses of outer hexagonal bolts for screw manufacturers

The outer hexagon bolt can be divided into two kinds according to its head shape: round and square, and can be divided into carbon steel and stainless steel according to the materials used. Its main use is to connect two or more parts together to provide reliable fastening force. For example, in the fields of construction, Bridges, vehicles, machinery and equipment, you can see the figure of the outer hexagonal bolt.

Second, the structural characteristics of the outer hexagonal bolt

1. Hexagonal head: The head of the outer hexagonal bolt is hexagonal, which can better match with the nut and achieve more efficient torque transmission.

2. Thread part: the thread part of the outer hexagon bolt is an important part, which is matched with the screw thread of the nut. By rotating the nut, the bolt can be tightened or loosened.

3. Rod body: The rod body of the outer hexagon bolt is usually long, and it can pass through the two parts that need to be connected, and tighten with a nut at the other end.

Third, the performance requirements of the outer hexagon bolt

1. Strength: The outer hexagon bolt needs to withstand a certain tension and torque, so its strength should meet the requirements of use. Generally speaking, the strength of outer hexagonal bolts made of carbon steel is higher than that of stainless steel bolts.

2. Rust prevention: For external hex bolts used outdoors or in humid environments, they need to have certain rust prevention properties. The rust resistance of stainless steel outer hexagon bolt is better than that of carbon steel bolt.

3. Fatigue resistance: Because the outer hexagon bolt needs to bear the load and torque frequently, it needs to have a certain fatigue resistance.

Four, the selection of hexagonal bolts principle

1. Select the appropriate material and strength level according to the occasion. For example, carbon steel outer hex bolts can be selected in general construction, while stainless steel outer hex bolts can be selected in corrosive environments.

2. Select the appropriate outer hexagon bolt specifications according to the material and thickness of the parts that need to be connected. In general, the diameter and length of the bolt need to match the part to be connected.

3. Consider the working environment and load type of outer hexagonal bolts, and choose the appropriate rust and fatigue resistance level. For example, in the Marine environment, it is necessary to select outer hexagonal bolts with high rust resistance.

4. In key parts or occasions requiring high safety, it is recommended to choose external hexagonal bolts with quality certification to ensure their performance and quality.

Five, outer hexagon bolt processing and installation

The processing of the outer hexagon bolt mainly includes three parts: head shape processing, thread processing and rod body processing. The processing process needs to pay attention to precision and quality to ensure that it can be well matched with the nut and the connected part. During installation, align and secure the connector, and then tighten the outer hexagon bolt using an appropriate wrench.

If you need to loosen the outer hexagon bolts, use an appropriate open or box wrench.

In summary, the outer hexagon bolt, as a common fastener, plays an important role in various structures and equipment. Understanding its type, structural characteristics, performance requirements, selection principles and processing and installation knowledge is of great significance for the correct use and maintenance of this fastener.