drywall screws Diameter: 3.5mm(#6),3.9mm(#7),4.2mm(# ... Phosphated,Grey Phosphated,Zinc Fine thread bugie head screws for drywall and general interior applications.Sharp Point means quick and easy ... 6" Coating: Black Phosphated,Grey Phosphated,Zinc,Yellow Zinc,Decromet Drywall Screw