... zinc plated, galvanized, yellow zinc plated, black oxide, H.D.G,ect.High strength HDG bolt 10.9s1.Materials: low carbon alloy steel ... in Europe & America & South Africa etc. Product: BoltsStandard: DIN, JIS, ANSI/SAE/ASME, ISO, BS, AS standard.Diameters ... namefish bolts & nutsstandardASTM, BS, UIC864-1, JIS, GOST, DIN, AS, GB and so on.sizesAccording to clientsClassAccording to clientsShape ...