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Heavy 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)


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