Do expansion screws have to be knocked and how long can expansion screws last?

The expansion screw is composed of two parts, the bolt and the expansion sleeve, the expansion sleeve has an opening at the tail and the bolt tail is a cone. When the bolt is pulled outward, the conerate at the tail of the bolt opens the opening of the expansion sleeve, so that the expansion sleeve is closely combined with the wall, and the bolt cannot be pulled out. After knowing the structure of the principle, you should understand your problem, right?

If you want to knock on the expansion sleeve, do not knock the bolt, so as to ensure that the expansion sleeve is buried deeply. Help others, help yourself.

When the wall is drilled, if the expansion screw is too tight when it is put in, it is necessary to tap the screw to let the expansion sleeve go into the hole as long as possible, and there is no need to knock it when it is easy to put in.

Hope mine helps you!

There are many types of expansion screws. Some are also to be knocked. Like a nail, the tighter it becomes.

It is not recommended to knock, there are many types of expansion screws. Some are also to be knocked. Like a nail, the tighter it becomes.

Installation steps: 1. Select an electric hammer drill bit that is 2mm larger than the expansion bolt model to punch holes (plastic expansion pipe needs a drill bit of the same size), and the depth is suitable for the length of the expansion pipe;

2. Put in the expansion bolt;

3. Choose the right tool to tighten the bolt according to the type of bolt

a. Ordinary expansion bolts: choose a dead wrench or a live wrench.

b. Metal internal expansion bolts: choose a dead wrench or a live wrench or a plum screwdriver.

c. Plastic expansion tube: plum blossom screwdriver is used.

According to the actual requirements, it can be tightened to a certain extent.

Summary. Dear, I am glad to answer for you: the scope of use of expansion bolts:

If you need to use an internal expansion screw (internal burst pipe), it is best to use it on a hard concrete wall, if it is a wall with a lot of sand, the strength of the hole may not be enough, and the internal burst pipe will expand and loosen when tightened. Stainless steel countersunk expansion bolts are mainly suitable for installation such as stair handrails, and there are some occasions where the screw is not exposed.

What to use internal expansion screws.

Dear, I am glad to answer for you: the scope of use of expansion bolts: if you need to use internal expansion screws (internal burst tubes), it is best to use them on hard concrete walls, if it is a sandy wall, there may be insufficient strength of punching, and the internal burst pipe is loose when tightening after expansion.

Stainless steel countersunk expansion bolts are mainly suitable for installation such as stair handrails, and there are some occasions where the screw is not exposed.

What to use external expansion screws.

What I need to know is when installing things, when to use the inner expansion screws and when to use the outer expansion screws.

Internal expansion is mainly suitable for installation such as stair handrails, and there are some occasions where the screw is not exposed. After the external expansion is installed, the screw rod is exposed, while the internal expansion is in the wall.

Which screw is stronger, the outer expansion screw is stronger than the inner expansion screw, because the internal expansion screw is actually the usual top burst screw, it is actually to drive the nut into the hole and then use the bolt to tighten a mat inside the nut and then expand the nut, so it is generally used in the place where the punching depth is not enough, so its tensile strength is worse than the external expansion screw.

Summary. Dear, Expansion expansion screws can be used for 30 to 50 years, and the service life of the screws depends on its use conditions and material quality. Under normal use conditions, the service life of expansion screws is generally related to factors such as its material, surface treatment, use environment and construction quality.

If the material is excellent, the surface treatment is good, the use environment is stable, and the construction quality is passed, the service life of the expansion screw can reach several decades or even longer. However, if the material quality is poor, the surface treatment is poor, the use environment is harsh, and the construction quality is poor, the service life of the expansion screw may be greatly shortened. Therefore, when using expansion screws, you should choose the most advanced and brand-guaranteed products, design and use them reasonably, and inspect and maintain them regularly to prolong their service life.

How many years can 16mm expansion screws be used in suspended ceilings.

Dear, hello, the expansion screw can be used for 30 to 50 years, and the service life of the screw depends on its use conditions and material quality. Under normal use conditions, the service life of expansion screws is generally related to factors such as its material, surface treatment, use environment and construction quality. If the material is excellent, the surface treatment is good, the use environment is stable, and the construction quality is passed, the service life of the expansion screw can reach several decades or even longer.

However, if the material quality is poor, the surface treatment is poor, the use environment is harsh, and the construction quality is poor, the service life of the expansion screw may be greatly shortened. Therefore, when using the expansion snail stove Bisi, you should choose the best and brand guaranteed products, reasonable design and use, regular inspection and maintenance, in order to prolong its service life.

Galvanized, 16mm ceiling.

Not too load-bearing. Dear, hello, galvanized 16mm expansion screws under normal use conditions, if the material is ***, the surface treatment is good, the use environment is stable, the construction quality is clear, its service life can reach decades or even longer. However, if the material quality is poor, the surface treatment is poor, the use environment is harsh, and the construction quality is poor, the service life of the expansion screw may be greatly shortened.

Therefore, when using the expansion screw trouser wire, we should choose the best and rolling brand guaranteed products, reasonable design and use, regular inspection and maintenance, in order to prolong its service life.

Summary. Hello, the screw-in expansion screw can be hammered in.

Hello, the screw-in expansion screw can be hammered in.

Because the judgment is a screw-in expansion screw, it can be knocked in, and the expansion screw is composed of two parts, the bolt and the expansion sleeve, the tail of the expansion sleeve has an opening, and the tail of the bolt is a digging cone If you want to knock on the expansion sleeve, do not knock the bolt, so as to ensure that the depth of the expansion sleeve is buried in the depth, that is, it can be knocked in, so the screw-in expansion screw can be knocked in.

The screw-in expansion screw is composed of two parts, the bolt and the expansion liquid are opened and eliminated, the tail of the expansion sleeve has an opening, and the tail of the bolt is a cone. When the bolt is pulled out, the conebrae at the end of the bolt will open the opening of the expansion sleeve, so that the expansion sleeve is closely combined with the wall, and the bolt will not be pulled out.

An expansion screw is a type of screw that is used to hold an item in place. It is characterized by the fact that it can be expanded in holes to form a tight fixation, which is suitable for items fixed to thin-walled materials.

The steps to use expansion screws are as follows:

1.First, drill holes where the item needs to be secured, and the size of the hole should match the diameter of the expansion screw.

2.Insert the expansion screw into the hole, taking care that the screw head should be flush with the surface of the item.

3.Use a screwdriver to rotate the screw until the screw head fits snugly against the surface of the item and the screw can no longer rotate.

4.Finally, connect the items that need to be fixed to the screws.

It is important to note that expansion screws are suitable for items that are fixed to thin-walled materials, and if the fixed items are heavier or need to withstand greater force, it is recommended to use other fixing methods.

1. Select an electric hammer drill bit that is 2mm larger than the expansion bolt model to punch holes, and the plastic expansion pipe needs a drill bit of the same size, and the depth is suitable for the length of the expansion pipe.

2. Put in the expansion bolt;

3. According to the type of bolt, choose the right tool to tighten the bolt

Ordinary expansion bolts: choose a dead wrench or a live wrench.

Metal internal expansion bolts: choose a dead wrench or a live wrench or a plum core screwdriver.

Plastic expansion tube: use plum screwdriver.

How to use: 1. When using, you must first use an impact drill or an electric drill hammer to drill a hole of the corresponding size on the fixed body, and then load the bolt and expansion pipe into the hole, and tighten the nut to make the bolt and the mounting piece and the fixed body expand and tighten as a whole.

2. Outer bread with an iron sheet, half of the iron cylinder has a dry incision if the chain is missing, stuff them together into the hole in the wall, and then lock the nut and pull the screw outward, pull the taper into the iron cylinder, the iron cylinder is opened, so it will be tightly fixed on the wall.

3. The expansion screw is composed of components such as screw and expansion pipe, the tail of the screw is conical, and the large diameter of the cone is greater than the inner diameter of the expansion pipe When the nut is tightened, the screw moves outward, and the cone part moves through the axial movement of the thread, and then forms a great positive pressure on the bolt composite cable bracket on the periphery of the expansion pipe, and the angle of the cone is very small, so that the friction self-locking between the wall, the expansion pipe and the cone is formed, and then the fixing effect is achieved.