4140 ALLOY STEEL ROD, MATERIAL ALLOY STEEL, MATERIAL GRADE 4140, OVERALL LENGTH 12 IN, HEAT TREATABLE YES, HEAT TREATMENT ANNEALED, MECHANICAL FINISH MILL, OUTSIDE DIAMETER 1 1/2 IN, OUTSIDE DIAMETER TOLERANCE +0.000 IN/-0.005 IN, YIELD STRENGTH NOT RATED, FABRICATION COLD FINISHED, ROCKWELL HARDNESS NOT RATED, BRINELL HARDNESS 241, MACHINABILITY NOT RATED, TENSILE STRENGTH NOT RATED, INCLUDES MATERIAL CERTIFICATE NO, STANDARDS AISI 4140, ASTM A1