High Quality Black Fine Thread Drywall Screw Manufacturer Supply Bugle Head Black Gypsum Board Screw Drywall Screw

Drywall screws are used for the connection between gypsum wallboard, etc., and metal keels. The thread is double-head thread, and the surface of the thread has a high hardness (≥HRC53), which can be quickly screwed into the keel to form a connection without making a prefabricated hole. The market is generally more black, namely black phosphating. Because mainly used for plasterboard, and plasterboard thickness is the same. Features: Made of case hardened steel, the screws offer strong pull strength to hold the drywall. Sharp points for easy to screw in and damage a little. Black phosphate coating to increase durability. Commonly with corrosion coating. Salt spray test ensures that no color stains the wall. Speed the drywall installation process. Long service life.