Drywall screws are used for fastening sheets of drywall to wall studs or ceiling joists. Compared to regular screws, drywall screws have deeper threads. This helps prevent the screws from being dislodged easily from the drywall.
Recess : Phillips, Square
Head : Flat Bugle, Countersunk
Thread : Coarse/Twinfast
Norm : DIN18182
Grade : C1022A, Case Harden
Surface : Phosphated, Zinc Plated, Dacromet, Ruspert
Drywall screws are made of steel. In order to drill them into the drywall, a power screwdriver is needed. Sometimes plastic anchors are used together with drywall screws. They help balance the weight of a hung object evenly over the surface.