... steel,ss,aluminum ,cu etc4.Finish: white/yellow/blue/black zinc, nickel, black oxide,copper, nylok etc.Inner packing: Polybag20-25kg/ cartonOut ... : 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 FINISHED: BLACK, ZINC PLATED, HDG.Unit: Mm Thread size M3 M4 ... 2 2.5 Dk 5.32 6.78 8.28 9.78 12.73 15.73 17.73 20.67 23 ... 2.86 3.82 4.82 5.7 7.64 9.64 11.57 13.57 15.57 19.48 E ... 4.58 5.72 6.86 9.15 11.43 13.72 16 19.44 S 2.5 3 4 5 6 ...