Drywall screws 1)Standard:DIN,ANSI 2)Material:Steel 3)Diameter:3~10mm,1/4#~3/8# 4)Length:4~100mm,1/2"~4" SpecificationsScrew 1)Standard:DIN,ANSI ... 2)Material:Steel 3)Diameter:3~10mm,1/4#~3/8# 4)Length:4~100mm,1/2"~4"Screw 1 ... )Material: Carbon Steel3)Diameter: 3mm~10mm, 1/4#~3/8#4)Length: 4~100mm, 1/2"~4"5)Finish: Plain, zinc, black phosphated, grey ...