The basic function and classification of bolts

  • Basic introduction of stud bolt manufacturer: Ningbo Zhenhai Yongding Fastener Manufacturing Co., Ltd. was established on October 17, 2006. The legal representative Xu Lin, the company's business scope includes: fasteners, mechanical parts, rubber and plastic products, non-ferrous metals. Manufacturing and processing of metals, machinery and electronic products; trade brokers and agents.

    The countersunk head can be screwed into the part. The round head can also be screwed into the part. The tightening force of the square head can be larger, but the size is larger. In addition, in order to meet the need of locking after installation, there are holes on the head and holes on the rod. These holes prevent the bolts from loosening during vibration. Some bolts do not have a thin smooth rod thread and are called thin waist bolts.

    This kind of bolt is conducive to variable force connection. There are special high-strength bolts on the steel structure, the head will be larger and the size will change. In addition, there are special uses: T-slot bolts, most commonly used for machine tool fixtures, special shapes, and both sides of the head should be cut off. The anchor bolts are used to connect and fix the machine and the ground. There are many shapes. U-shaped bolts as described above. There are a lot more. There are also special studs for welding. There is a thread on one end and not on the other end. You can weld it to the part and screw the nut directly to the other side. .

    High-grade bolts are the basis of high-end machinery manufacturing, and their role can be described as "four or two shifts". On the surface, the output value of bolts only accounts for a few percent of the machinery industry. In essence, it brings higher added value to key components and equipment. Over the years, China's bolt industry has experienced negative growth in 2012, and after consecutive double-digit growth, it has fallen by 1.5% year-on-year. This is mainly due to insufficient market demand, especially after bolts suffered international anti-dumping and export sales declined. Happening.

    If you want to choose a good bolt factory, please take a look at the Ningbo Zhenhai Yongding Fastener Manufacturing Co., Ltd. I introduced. I believe you will not be disappointed.