Drywall screws are a very special threaded component th […]
Drywall screws are a very special threaded component that can be used to make ducts, brackets, etc. on the wall or floor.There are also some issues to be aware of when installing the expansion screws. Expansion screws are assembled by bolts, expansion tubes, etc.
These expansion screws are divided into two types, namely stainless steel and plastic expansion screws, which are used for different purposes. The fixing function of the expansion bolt is to use its own inclination to increase the friction.
In the case of punching, it is also necessary to pay attention to the depth of the hit. In some data, it shows the length of the expansion tube, and the specific installation knows that the depth is not enough, which may be in the hole. The debris left behind is related, so the depth of the hole is five millimeters deeper than the length of the expansion tube.
When it is determined that the depth of the perforation is greater than the length of the expansion tube, then the length of the expansion screw in the ground is also smaller or equal to the length of the expansion tube. The expansion screw also has a high requirement on the ground, that is, the harder the ground of the construction, the better the effect will be, and the premise is to understand the force of the article that needs to be fixed.
If the construction is in concrete, its force is five times that of the brick wall. Therefore, it is necessary to see the fixed object stress when selecting. Also note that the object to be installed is very vibrating, so the screw will be loose when it is vibrating. Therefore, when selecting the fixing piece, it is determined according to the amplitude of the object itself. It is better to Used on fixed objects.