Definition of bolt: bolt is used to connect two parts (or prefabricated components) with embedded hole and one end cap. In riveting, make full use of deformation or interference to connect riveted parts.

1. Hollow bolt: light weight, weak nail head, used for riveting place of non-metallic material with small load.

2. Half space central bolt: the riveting rod is hollow. According to different requirements, it must be able to set different hole depth. Therefore, the load is stronger than that of hollow bolt. The key is to use the riveting place with small load.

3. Solid core bolt: to put it bluntly, all riveting rods are solid core. The relativity of technological process for hollow and half space central bolt should be simple, and the load should be stronger than that of half space central bolt. It can be used in riveting places with heavy load.

4. Flat head and flat round head bolt: according to the product characteristics, the key is to use metal plate or leather products, white canvas, wood and other non-metallic materials for riveting.

5. Open mouth stainless steel rivet: this kind of bolt is a good choice for products with strong tensile strength and high corrosion resistance requirements.

6. Cooling fan bolt: it is designed for manual installation. According to the hole of panel or support frame, it can be pulled in. It is made of polyurethane elastomer raw materials. Therefore, it has excellent ductility. The design scheme is appropriate and has ductility effect. The matching diameter is not easy to slide down. The key application of cooling fan bolt is electronic device computer The fan, radiator and stainless steel lantern rivets are integrated to fix the IC, which can prevent vibration and reduce noise.

7. Core striking bolt: it is a new riveting standard part which is very convenient for riveting. In a relatively narrow indoor space or in the natural environment where there is no riveting gun and it can not be used, the core striking bolt can show its own unique advantages. By using hammerhead and other utensils to knock the nail core on both sides, two or more connected parts can be riveted successfully. According to the appearance of screw cap edge, the core striking bolt can be divided into flat round head core striking bolt and countersunk head core striking bolt.

8. Core pulling rivets: the modified bolts can be divided into open mouth type, sealing type, double drum type and single drum type.

9. Countersunk head bolt: the rivet head is riveted downward on the basis of small flat head bolt, which is used to combine rivets. The riveting of riveted parts with smooth and beautiful appearance is specified on the surface after riveting.

10. Double drum rivet: when riveting, the rivet core will pull the tail end of the bolt body into a pair of drum type, and clamp the parts to be riveted, so as to reduce the working pressure on the surface of parts. It is used for riveting various thin parts in the fields of vehicles, ships, engineering construction, mechanical equipment and electronic devices.