We have different bolts which accordind ANSI/ASME, DIN, BS, AS, GB, JIS and ISO standards. Specification: Heavy hex bolts: A193B7, A320L7 Structure bolts : A325 A490 Hex bolts: Gr. 2, 5, 8 Hxagon bolts: DIN933, DIN931, DIN6914 Flange bolts: DIN6912 Carriage bolts: DIN603