zinc plated: yellow, blue&white Self Drilling Screw 1.Head tpye:HWH,HFH,PAN HEAD,FLAT HEAD,BUGLE HEAD2.Size:#6,#7,#8,#10,#12,#14 3.Length:13-240mmFinish:zinc plated,painting,dacromat,RuspertSize:#6,#7,#8,#10,#12,#14Length:13-240mmStandard:IFI,DIN,UNIAdvantages:good quality,large production capacity,timely delivery,competitive price