Name：A325 Heavy Hex Structural Bolts

Typical Material：   Material:Medium Carbon Steel 
Material and Mechanical Properties：  ASTM A325 Type 1 
Dimensions：   ASME B18.2.6 
Typical Hardness：   HRC 25-34 on sizes 1/2 to 1 inch less than 2D in length and HRC 34 max 2D and greater in length;HRC 19-30 on sizes 1-1/8 to 1-1/2 inches less than 3D in length,HRC 30 max 3D and longer lengths. 
Tensile Strength：   120,000PSI Minimum on sizes 1/2 to 1 inch;105,000 PSI Minimum on sizes over 1 to 1-1/2 inches.