Custom carbon steel combination sems screw
Description
Combination screw, one screw is equipped with only one spring washer or only one flat washer, or it can also be equipped with only one spline two assembly, used for connecting and fastening parts such as household appliances
Product Application
The combination screw is easy to use, does not need the assembly gasket, and effectively provides the production efficiency, so it is widely used in the electronic field. The head type of the combination screw is generally designed as pan head cross type, outer hexagon combination type and inner hexagon combination type, and can also be designed according to the actual needs of customers.
Main Differences From Ordinary Screws
In fact, the combination screw is also a kind of screw, but it is special. Generally, it is a three assembly or a two assembly, but at least a two assembly can be called a combination screw. The main difference between ordinary screws is that they are equipped with one more spring washer or one more flat washer than ordinary screws, or three assemblies are equipped with one more spring washer. This is the main difference between the appearance of combination screws and ordinary screws.
In addition to the obvious difference in appearance, the main difference between combination screws and ordinary screws is the difference in mechanical properties and uses. The combination screw is a three assembly or two assembly with elastic flat washer. Of course, it is made of ordinary screws with elastic flat washer. If the spring flat pad is fitted, it will not fall off. Fasten to form an assembly. In terms of mechanical performance, the combination screw is composed of three accessories, and the performance must be made of three fasteners. The mechanical properties of combined screws are more firm when used. More convenient. The biggest advantage of the combination screw is that the production line can be operated conveniently and quickly, and the work efficiency can be improved.
