The name of the drywall screw is directly translated from the English Drywall Screw. Its biggest feature in appearance is the shape of the horn head. It is divided into two-line fine-tooth drywall screws and single-line coarse-tooth drywall screws. The biggest difference between the two lies in the former. The thread is a double thread, which is suitable for the connection between gypsum board and metal keel whose thickness does not exceed 0.8mm, and the latter is suitable for the connection between gypsum board and wooden keel.