drywall screw Material:C1022A Szie:3.5x16-4.8x152mm FInish: gray/black phosphate Package: 1000pcs/box, then in cartons Drywall screw:1, Diameter: 3.5mm/3.8/3.9mm/4.2mm /4.8mm 2, Length: 16mm-152mm3, Material: C1022A4, Finish: black phosphated/Grey/white zinc plated5,Package:1000/500 pcs /box or bulk packing in 15-20kg cartons with palletsDrywall screws black phosphate bugle head fine/coarse ...