Fully Threaded Rod Material Grade/Class Class 8.8 Material Steel Finish Black Oxide Thread Size M30-3.5 Overall Length 1 m Tensile Strength 120 350 psi System of Measurement Metric Thread Direction Right Hand Dimensional Standards DIN 976 Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Minimum Yield Strength 90 000 psi Rockwell Hardness C34 Max