Difference between water stop screw and through-wall screw

First, fix the formwork with water stop screw to prevent the formwork from bursting. It is used in walls to stop water and prevent water. Like the traditional first-class water stop screw, the screw heads at both ends need to be cut after use. Later, the outer rod and joint nut of the three-stage water stop screw can be reused, which saves a lot of steel, that is to say, the water stop screw belongs to lossy materials; It is suitable for walls that need waterproofing, and it is also a waterproof material.

Second, the through-wall screw is used to fix the formwork to prevent the formwork from bursting, and it is used for the building wall on the ground that does not need waterproofing. Through-wall screws can be extracted from the wall and reused, and have no water stopping effect;

Thirdly, the water stop screw is a kind of through-wall screw. Adding a water stop piece in the middle of the through-wall screw becomes a water stop screw, which also has the effect of water stop and waterproof, and the materials used are the same.