What are the two main types of Carbon Steel Drywall Screw?

Carbon Steel Drywall Screw are mainly divided into two types according to the different thread designs: double-thread fine-pitch drywall screws and single-thread coarse-pitch drywall screws. Double-thread fine-pitch drywall screws use a double-thread thread design, that is, two parallel thread lines, with thinner threads and closely arranged. This structure enables it to cut into the material more quickly during installation, while providing stronger bite force and anti-loosening performance. Due to the large thread contact area, double-thread fine-pitch drywall screws are particularly suitable for fixing metal keels, which can tightly bite hard materials and reduce the risk of screw loosening. In addition, its high-precision thread design also makes it suitable for scenes with high stability requirements, such as precision engineering such as suspended ceilings and partitions.

Single-thread coarse-pitch drywall screws use a single-thread thread design, that is, a continuous thread line, with coarser threads and larger spacing. This structure makes it easier to quickly screw into wooden materials (such as wooden keels and wooden boards), improving installation efficiency. The coarse thread design can bite deeper into soft materials, provide stronger pull-out resistance, and reduce the risk of wood cracking. Therefore, single-line coarse thread drywall screws are mainly used to fix gypsum boards to wooden keels, suitable for ordinary decoration projects or occasions with high installation speed requirements.

Double-line fine thread drywall screws and single-line coarse thread drywall screws each have their own advantages in application. Double-line fine thread drywall screws are more suitable for fixing metal keels or high-density panels because of their high bite force and anti-loosening characteristics, which can ensure long-term stability. Single-line coarse thread drywall screws are more suitable for wooden structures, are faster to install, and can effectively prevent wood damage. In actual construction, users should choose the appropriate screw type according to the substrate type (metal or wood) and engineering requirements (precision or efficiency) to achieve the best fixing effect.