Cross CSK Flat Head Self-tapping Screws 1.Materials:C1022. 2.Diameter:ST2.2~9.5,4#~14# 3.Length:4.5~127mm,1/4"~5" 4.DIN7982 Cross CSK Flat Head Self-tapping ScrewsHigh quality and Best price1.Materials:C1022.2.Diameter:ST2.2~9.5,4#~14#3.Length:4.5~127mm,1/4"~5"4.Standard:DIN79825.Packing:Bulk or Small Box,According to customer requirement6.Surface Treatment :Zinc,Black Phosphate,Grey,Nickel,Etc ...