Name：HEX CAP SCREW

Hex Cap Screws,Grade 2 

Typical Material：   Low Carbon Steel,C1015-C1035 
Material and Mechanical Properties：  SAE J429 Grade 2 
Dimensions：   ASME B18.2.1 
Typical Hardness：   HRB 80-100 on sizes 1/4 to 3/4 inch,HRB 70-100 on sizes over 3/4 inch. 
Tensile Strength：   74,000PSI Minimum on sizes 1/4 to 3/4 inch to 6 inches in length;60,000PSI Minimum on sizes over 3/4 inch and lengths longer than 6 inches. 

 

Hex Cap Screws,Grade 5 

Typical Material：   Medium Carbon Steel 
Material and Mechanical Properties：  SAE J429 Grade 5. 
Dimensions：   ASME B18.2.1 
Typical Hardness：   HRC 25-34 on sizes 1/4 to 1 inch;HRC 19-30 on sizes over 1 to 1-1/2 inches. 
Tensile Strength：   120,000PSI Minimum on sizes 1/4 to 1 inch;105,000 PSI Minimum on sizes over 1 to 1-1/2 inches. 

 

Hex Cap Screws,Grade 8 

Typical Material：   Medium Carbon Alloy Steel 
Material and Mechanical Properties：  1/4 to 1-1/2 are purchased to meet SAE J429 Grade 8.Diameters over 1-1/2 are purchased to meet ASTM A354 Grade BD. 
Dimensions：   ASME B18.2.1 
Typical Hardness：   HRC 33-39 on sizes 1/4 to 2-1/2 inches;HRC 31-39 on sizes over 2-1/2 inches. 
Tensile Strength：   150,000 PSI Minimum on sizes 1/4 to 2-1/2 inches;140,000 PSI Minimum on sizes over 2-1/2 inches.