... ANSI, ASTM (America), DIN (Germany), GB (China), UNI, JIS (Japan), ISO and TCVN (Vietnam). steel structrue bolt1.Application:railways, highways, bridges ... & South Africa etc. Product: BoltsStandard: DIN, JIS, ANSI/SAE/ASME, ISO, BS, AS standard.Diameters Metric: from M6 to M72, Inch ...