With the needs of the society, the use of expansion screws is becoming more and more widely. Due to the small drilling, large pulling force, and flat exposure after use, and can be removed at will if not used, the advantages of keeping the wall flat are significant, so it is widely used in various decorations. occasion. But in the process of using expansion screws, many people will find that we will have an unsightly effect on the wall. Now, today, based on years of experience, Xiaorui will tell you some points that need attention about expansion screws.
We need to pay attention to the following points when playing expansion screws:
1. Drilling depth: The relevant information introduces the length of the expansion tube, but I found that the depth is not enough in the actual construction, which may be related to the amount of debris in the hole, so you'd better be 5 mm deeper than the length of the expansion tube about. As long as you are greater than or equal to the length of the expansion pipe, then the length of the expansion bolt left in the ground is equal to or less than the length of the expansion pipe.
2. Of course, the requirement of the expansion bolt to the ground is that the harder the better, it also depends on the force of the object you need to fix. The force strength installed in concrete (C13-15) is five times that of bricks.
3. After a M6/8/10/12 expansion bolt is correctly installed in the concrete, its least ideal maximum static force is 120/170/320/510 kg respectively.
Reminder: The performance of expansion screws is graded, we can choose different grades of screws according to our specific needs, so that the expansion screws can play the best role in the use process.
