"FURNISHED ITEMS: 2 PINS AND 2 BOLTS; PINS LOCK ONE END, BOLTS LOCK OPPOSITE END, BOLT END IS SLOTTED, UNTHREADED; HALF OF HOLES HAVE 0.125 IN. DIA, THREADED HALF OF HOLE IS 0.112-40 UNC, PIN CENTER TO PIN CENTER IS 0.156 IN., BOLT CENTER TO BOLT CENTER IS 0.420 IN., COUPLING IS NOT ROUND; IS MADE FROM 1/2 X 5/8 BAR STOCK"