... 4.Finsh:Black/grey phosphating,Z/P Black phosphating coarse thread drywall screws Products Details: Products Name: Drywall Screw Size: M3 ... of the head Product size: Pictures show: 1. Fine thread 2. Coarse thread 3. Drilling point 4. Bugle head 5. Phillips drive ... North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Asia,Western Europe,US, South Korea, Russia and so on ...