DIN471 black spring steel snap ring retaining ring shaft clamp M5 M6 M8

Furthermore, the clamping mechanism comprises two clamping pieces arranged between two fixed blocks, with a second housing installed on one side of each clamping piece, and a second bearing installed inside the second housing. The inner ring of the second bearing is clamped with a fastening screw and connected, usually including a thread head, a thread part, and a thread tail. In previous thread processing, the thread head and thread part were punched, and then the thread part was machined on the thread shaft through a turning process. After that, high and low threads were formed on the outer circumference of the material diameter of the thread part through a thread tooth device. In the past, when stamping the screw head, it was easy to damage the screw head due to the high impact force.

As an important connecting component in the automotive assembly process, screws play an important role in the safety performance of the vehicle, and the role of screws is essential in the assembly of various components of the vehicle. The connection of automotive components and their components, the fastening and structure of the threads are simple, and maintenance and loading and unloading are easy. There are up to a thousand threads used on a car, and the thread connections in each part have unique effects and functions. When any one or part of the thread connections fail, the connection tools become loose or detached. It is likely to cause some parts to malfunction and detach, and young people may cause the main functions of the car, such as steering and braking, to malfunction, potentially affecting driving safety. Otherwise, it may cause major safety accidents and even endanger human life. The failure of car screws poses a safety hazard for the entire vehicle, causing customer concerns and complaints, affecting the credit of the enterprise, and threatening its lifecycle.

The traditional screw head located outside the threaded hole occupies a large space, which is not suitable for situations with small space or situations where the outer surface of the component is the working surface. For example, in the field of electronic products, or when connecting shafts and sleeves, machine screws with a fully threaded structure on the surface are widely used.

A rivet is a nail shaped object used to connect two parts or components with through holes and a cap at one end. In riveting, the riveted parts are connected using self deformation or interference. There are many types of rivets, and they are not limited in form. The existing ones are not easy to fix and require support from others during installation, which leads to manual waste and can easily harm the hands of the support personnel. The existing device driving method is relatively laborious, and the existing device requires different lengths of rivets for different thicknesses, and cannot be assembled by the same model.

A type of asphalt pavement screw, which comprises a main rod, an outer sleeve, a pressing plate, and a nut. The main rod is a columnar rod, and the lower end of the main rod is provided with a table to support the outer sleeve. The middle of the main rod passes through the inner hole of the outer sleeve, and the upper part of the main rod is provided with a threaded section. The pressing plate and nut are arranged on the threaded section, and the outer sleeve is provided with at least two deformation holes. The middle of the deformation hole is larger than the upper and lower sides of the deformation hole, The area between adjacent deformation holes is the deformation part, and the width of the middle part of the deformation part is smaller than the width of the upper and lower sides of the deformation part. After the assembly of asphalt pavement screws by Guangdong Yueluo Hardware Industry Co., Ltd., they have strong adhesion to the asphalt pavement, and even if hit, they will not detach from the asphalt pavement. Using these asphalt pavement screws to fix road railings can enhance the firmness of road railing assembly.