Due to the undercut between shoulder and thread, be sure to lower the tightening torque normally used for Class 12.9 screws.
Material12.9 Alloy Steel
System of MeasurementMetric
Drive TypeHex Socket
Shoulder Length Tolerance+0.25mm
Min. Tensile Strength (PSI)159,500
Shear Strength (PSI)95,700
Rockwell HardnessC39 to C44
Meets/ExceedsStandards Comparable to ISO 7379
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