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Hex Machine Bolts,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.
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