Bolt, Nut, Customized Fastener manufacturer / supplier in China, offering M8 M10 M12 Galvanized Hex Bolt Grade 8.8 10.9 Alloy Steel, 1.75" X 335L A320 Gr B8m Cl 2 or A193 Gr B8m Cl 2/A194 Gr 8m Combined SA320 B8 Cl2 / SA194 8A Stud Bolts with Heavy Hex Nuts, ASTM A193 Grade B8m Heavy Hex Bolt 316 Stainless Steel for High Temp / Pressure Flange and so on.