hex screw 1.Head tpye:HWH,HFH,PAN HEAD,FLAT HEAD,BUGLE HEAD ect. 2.Size:6mm,7mm,8mm,10mm,12mm,14mm 3.Length:13-240mm hex screw SUPPLIER:Finish:zinc plated,painting,dacromat,RuspertSize:6mm,7mm,8mm,10mm,12mm,14mmLength:13-240mmStandard:IFI,DIN,UNIAdvantages:good quality,large production capacity,timely delivery,competitive price