The range of watertight screw rods is abundant, with diameters including 12mm, 14mm, 16mm, and more. Generally, for wall heights below 5 meters, a 12mm diameter watertight screw rod is recommended. For walls between 5 to 7 meters, a 14mm size is suitable, while taller walls or special requirements can use a 16mm watertight screw rod. In terms of length, the rods can be custom-made according to the thickness of the wall. For example, a 30cm thick wall can be satisfied with watertight screw rods that are 70cm or 80cm in length.nnThe watertight plate in the middle of the watertight screw rod is the key to waterproofing. We offer circular and square watertight plates, with common sizes such as 3.5cm×3.5cm, 5cm×5cm, 7cm×7cm, etc. The standard thickness is 2.5mm, but we can also customize thicker watertight plates according to customer requirements. The watertight plates are made of high-quality materials and are welded using CO2 protective welding technology to ensure a firm connection with the rod. Double-sided welding ensures the waterproofing effect, effectively preventing the lateral penetration of water molecules.nnIn terms of material, Q235B steel is selected, which has a tensile strength of ≥400MPa and remains stable during concrete pouring without deformation or bending, bearing strong lateral pressure. Some watertight screw rods also undergo galvanizing or epoxy coating treatment to enhance corrosion resistance and extend service life. The products are divided into traditional and three-piece types. The traditional type is suitable for small projects or one-time use scenarios; the three-piece watertight screw rod’s outer rod can be reused 5-8 times, effectively reducing costs in large-scale projects. Whether it’s basements, pools, dams, or other waterproofing projects, Yantai Aoyang’s watertight screw rods can provide a solid waterproof defense for your projects with their outstanding performance.n
