Model Number: 3.5/4.2/4.8/5.5/6.3 Material: carbon steel C1022 or C1018 Standard: IFI,DIN,UNI drywall screw 1.Head tpye:HWH,HFH,PAN HEAD,FLAT HEAD,BUGLE HEAD ect. 2.Size:6mm,7mm,8mm,10mm,12mm,14mm 3.Length:13-240mmdrywall screw SUPPLIER:Material:carbon steel C1022 or C1018Finish:zinc plated,painting,dacromat,RuspertSize:6mm,7mm,8mm,10mm,12mm,14mmLength:13-240mmStandard:IFI,DIN,UNIAdvantages:good ...