Hollow screw is a kind of construction screw. The screw pipe is hollow in section. It is an innovatively designed new type of construction screw product with light weight and strong load-bearing capacity based on the original solid screw. Hollow screw rods are divided into two types: bottom support hollow screw rod and base hollow screw rod from the position of action. The function of the screw rod is to transfer the stress of the building, so the quality problem is very important.

We judge the quality of the hollow screw firstly to see whether it meets the national standard. However, some technical management, procurement and construction personnel have little understanding of the national standard of the hollow screw, and it is difficult to judge the quality of the hollow screw when purchasing. Pros and cons.

The hollow screw manufacturer introduces to customers the four-step method of distinguishing the advantages and disadvantages of the hollow screw in construction, and helps everyone to improve the ability to distinguish the advantages and disadvantages of the hollow screw.

1. Use high-quality raw materials.

2. The construction hollow screw products produced by advanced technology are produced in strict accordance with national standards.

3. The threads are tightly fitted.

4. The weight complies with national standards.

Adjustable hollow screw rods are used in conjunction with steel pipes and scaffolds during the construction process to adjust the height of the scaffolds and pipe frames, balance supporting weights and load-bearing. It is most used in the construction process of concrete pouring in plane construction. With the rapid development of real estate and three-dimensional transportation in recent years, the amount of adjustable building screws has also made rapid progress.

The above are the problems that should be paid attention to when selecting hollow screw rods.