HEXAGONAL NUTS Factory

What is the specific working principle of the products under the category of HEXAGONAL NUTS?

Yuyao Cili Machinery Co., Ltd., since its establishment, has passed the ISO9001-2008 quality management system certification, covers an area of ​​15,000 square meters, and currently has more than 200 employees. We specialize in the design and production of self-drilling screws, wood screws and window expansion screws. The company has advanced production equipment, including wire drawing, annealing cold punching, clamping, rolling and other links, strong technical force, strict quality inspection, to ensure that each product meets high standards. With many years of deep experience in the fastener industry, we can flexibly customize products according to the samples or drawings provided by customers to meet the needs of different customers.

1. Working principle of HEXAGONAL NUTS
Hexagonal nut is one of the common fasteners in mechanical connection. It is mainly used in conjunction with bolts or screws to achieve fastening and connection by using the interaction between threads. Its appearance is hexagonal and the internal structure is a threaded structure. This design can withstand large torque and makes operation more convenient. A wrench or socket tool can easily grasp the outer hexagon of the hexagonal nut to apply rotational force for tightening.
The basic working principle of the hexagonal nut relies on the spiral motion of the thread. When the nut rotates along the thread of the bolt, the friction of the thread causes a large clamping force to be generated between the nut and the connecting part to prevent the nut from loosening. Under the action of the load, the bolt transfers the external load to the connecting part through the nut, thus forming a stable mechanical connection.
Specifically, the working process of the hexagonal nut can be divided into the following steps.
Thread engagement: The threads inside the hexagonal nut mesh with the threads outside the bolt. When we rotate the nut with a wrench or other tool, the nut moves forward or backward along the thread axis of the bolt. The linear displacement generated by this process makes the nut gradually approach the surface of the connecting part and generates a clamping force.
The role of friction: The thread contact area between the nut and the bolt generates friction, which is an important factor in the fixation of the nut. The greater the friction, the better the locking effect of the nut, which can effectively prevent loosening caused by vibration or external force.
Torque transmission: When we use a wrench to apply torque to the hexagonal nut, this torque will be transmitted to the bolt through the thread, thereby converting the external force into a tightening force between the threads. As the nut is continuously tightened, the bolt gradually tightens the connector to form a strong connection structure.
Formation of preload: During the tightening of the nut, the bolt will be subjected to a certain tension to form a preload. Preload is an important indicator of the hexagonal nut connection, which determines the firmness and durability of the connection. Reasonable preload can ensure that the nut and bolt will not loosen or over-tighten under stress.

2. Types and applications of hexagonal nuts
According to different usage scenarios, hexagonal nuts can be divided into many types, including standard hexagonal nuts, thickened hexagonal nuts, self-locking hexagonal nuts, etc. Each type of nut has its own unique uses and advantages.
Standard hexagonal nut: This is the most common type of nut, widely used in mechanical equipment, building structures and household appliances. Standard hexagonal nuts are usually used in conjunction with standard bolts, suitable for general tightening needs, and have good anti-loosening performance.
Thickened hexagonal nut: The wall thickness of the thickened hexagonal nut is thicker than that of the standard nut, and it is suitable for occasions that need to bear larger loads. Its advantage is that it can provide higher torque and tightening force, and is particularly suitable for heavy machinery and equipment or high-strength connections.
Self-locking hexagonal nut: Self-locking nuts prevent loosening by increasing friction in the design of the thread or adding plastic rings to the nut. This type of nut is particularly suitable for connections in vibrating environments, such as automobiles and railway equipment.

3. Material selection of hexagonal nuts
The material selection of hexagonal nuts directly affects its performance and service life. According to different application requirements, common materials include carbon steel, stainless steel, alloy steel, etc.
Carbon steel hexagonal nut: Carbon steel is one of the most common nut materials, with good strength and wear resistance, suitable for most common industrial equipment and building connections. Usually, the surface of carbon steel nuts is galvanized to enhance their corrosion resistance.
Stainless steel hexagonal nut: Stainless steel nuts have excellent corrosion resistance and are particularly suitable for use in humid or corrosive environments, such as marine equipment, chemical equipment, etc. Stainless steel nuts also have good high temperature resistance and can maintain their mechanical strength and toughness under high temperature environment.
Alloy steel hexagonal nuts: Alloy steel nuts improve the strength, hardness and fatigue resistance of the material by adding specific alloy elements (such as chromium, molybdenum, etc.), which are suitable for fastening connections in high-load and high-precision mechanical equipment.

4. Processing technology of hexagonal nuts
The production process of hexagonal nuts involves multiple steps, including wire drawing, cold heading, tapping, heat treatment, etc. Among them, cold heading is an important process to form the shape of the nut, while tapping determines the accuracy and fit of the nut thread. The final heat treatment can improve the hardness and fatigue resistance of the nut and ensure its stability under high load conditions.

Yuyao Cili Machinery Co., Ltd., as a professional fastener manufacturer, is committed to providing customers with high-quality hexagonal nut products. We use advanced production technology and strict quality control to ensure that every product meets customer needs. Whether it is material selection, processing technology, or product application, we pursue excellence to meet the fastening needs of different industries.