Cres; 3.707 in. O/a lg; 1.625 in. Major dia; 0.195 in. Lg of major dia; hex wrenching feature one end 0.815 in. Across flats; three sets of threads; 1st thd hex end female 0.625-11 unc; 2b; rh; 2nd end thd female 0.875-14 unf; 2b; rh; 3rd end external thd 1.375-12 unf; 2a; rh; thd lg 0.875 in.