Double End Threaded Stud Thread Size 1/2-13 Overall Length 1 1/2 In Steel Thread Length Type Unequal Black Oxide Finish UNC Thread Type Thread Length 5/8 In Thread Length Opposite End 5/8 In Shank Type Round Right Hand Thread Direction Rockwell Hardness 27RC Min Tensile Strength 125 000 PSI Class 2A Package 2