please answer this asap

1. Short Answer (10 Points) 1. (5 points) A design utilizes a 1/2-13 UNC bolt with the grade shown at the right. Note the bolt is specially made as a double-threaded (or two start). a) What is the major thread diameter of the bolt? b) What is the proof strength of the bolt? c) What is the yield strength of the bolt? d) What is the ultimate strength of the bolt? e) If the bolt is held stationary and the nut is rotated 1 full turn, how far does the nut move axially along the bolt