Raychem part number 10313322.  The description I have is:  BOLT, U, ¾” X 2 ¼”X 5 ¾” WITH HARDWARE BOLT, U , 3/4 “ ROD,2-14” C-C WIDTH, 5-3/4” INSIDE LENGTH, 4” THREAD LENGTH, 4 PIECES, 2 HEX NUTS , 4 FENDER WASHER AND 2 CONCAVE LOCKNUTS, ASSEMBLED.