Name：Heavy Hex Nuts ,A563

Hex Nuts,A563 Grade A

Typical Material：   Low Carbon Steel 
Material and Mechanical Properties：  ASTM A563 Grade A 
Dimensions：   ASME/ANSI B18.2.2 
Hardness：   HRB 68 - HRC 32 
Proof Load Strength：   90,000PSI Minimum(68,000 PSI for HDG nuts) 

Hex Nuts,A563  Grade B

Typical Material：   Low Carbon Steel 
Material and Mechanical Properties：  ASTM A563 Grade B 
Dimensions：   ASME/ANSI B18.2.2 
Hardness：   HRB 68 - HRC 32 
Proof Load Strength：   90,000PSI Minimum(68,000 PSI for HDG nuts) 

Hex Nuts,A563  Grade C

Typical Material：   Medium Carbon Steel 
Material and Mechanical Properties：  ASTM A563 Grade C 
Dimensions：   ASME/ANSI B18.2.2 
Hardness：   HRB 78 - HRC 38 
Proof Load Strength：   140,000PSI 

Hex Nuts,A563  Grade DH

Typical Material：   1035 to 1045 steel 
Material and Mechanical Properties：  ASTM A563 Grade DH 
Dimensions：   ASME/ANSI B18.2.2 
Hardness：   HRC 24 - HRC 38 
Proof Load Strength：   175,000PSI(150,000 PSI for HDG nuts)