Grade 8.8 Carriage Bolt
The strength grade of carriage bolts is selected according to the working pressure. The performance grades of carbon steel carriage bolts are 3.6, 4.6 and 4.8. The standard can refer to GB3098.1, while the material of stainless steel carriage bolts is mainly austenitic stainless steel, which owns good heat resistance, good corrosion resistance and good weldability.
