Countersunk head self drilling screw Dia: 3.5-6.3mm; 6#-14# Length: 9.5-125mm; 3/8"-5" Material:C1022 Finish: zinc plated SELF DRILLING SCREWRaw materialC1022,Diameter3.5mm, 3.9mm, 4.2mm, 4.8mm, 5.5mm, 6.3mm( 6#, 7#, 8#, 10#, 12#, 14#)Length9.5-125mm ( 3/8"-5")Shankself drillingSurfaceZinc plated , yellow zinc or white zinc ,or blue zincPacking1000pc/box,500pc/box,10kg/carton,20kg/carton,25kg/ ...