Hexagon Washer Head Self Tapping Screw, Zinc Plated ---Rawl Material: C1022 or C1018---Sizes: all sizes---Type 17 slotted of the tapping point---Finish: Zinc(white, blue&yellow), Nickel, darcrow, Ruspert and others.Screw 1)Standard:DIN,ANSI 2)Material:Steel 3)Diameter:3~10mm,1/4#~3/8# 4)Length:4~100mm,1/2"~4"Screw 1)Standard: DIN, ANSI2)Material: Carbon Steel3)Diameter: 3mm~10mm, 1/4#~3/8#4) ...