Expansion bolts are a commonly used decoration material, so it is very necessary to understand the installation methods and precautions of expansion bolts. Let's take a look at the installation methods and precautions for expansion bolts.
1. Expansion bolt installation tools
The tools required for installing expansion bolts include: electric drill and drill bit, hammer, cross driver, pencil, etc.
2. Installation method of expansion bolts
1. Use an impact electric drill to drill holes of corresponding sizes on the fixture.
2. Install the bolts and expansion tubes into the holes.
3. Tighten the nut so that the bolts, expansion tubes, mounting parts and fixing bolts become one unit.
4. After the expansion is completed, the head of the bolt will expand. There is a big head at the tail of the bolt. The bolt is covered with a round pipe slightly larger than the diameter of the bolt. There are several openings in the tail part. When the bolt is tightened, the tail of the big head is brought Go inside the open pipe, make the pipe larger to achieve expansion, and then fix the bolts to the ground or wall to achieve rooting.
3. Installation steps of expansion bolts
1. Choose an alloy drill bit that matches the outer diameter of the inner expansion bolt, and then drill according to the length of the inner expansion bolt. Drill the hole to the depth required for your installation, and then clean the hole.
2. Install the flat washer, spring washer and nut, screw the nut to the bolt and end to protect the thread, and then insert the inner expansion bolt into the hole.
3. Turn the wrench until the surface of the gasket and the fixture are flush. If there are no special requirements, generally tighten it by hand and then use the wrench for three to five turns.
4. Precautions for installation of expansion bolts
1. Expansion screws must be installed on a relatively hard foundation. For example, the mortar joints in the wall are soft and easy to fall off, making the installation unstable.
2. Do not unscrew the bolt head to avoid drilling the hole too deep and causing the bolt to fall into the hole and make it difficult to remove it.
The above are the installation methods and precautions for expansion bolts. I hope it can be helpful to everyone.
