Stainless Steel Marine Boat Tie Rod 
   -  20" overall length
   - 17.5" from Center of Eye to Center of triangle mount hole
   - 3/8" eyelet hole
   - 1/2" threaded shaft with heavy duty Tie rod Sheath so overall diameter is 0.687" (11/16")

I don't know what this fits, so I put as many measurements in that I can.  If you need any more please contact me.   The pictures show the shaft threaded in as far as it will go.  You can back off the threads a 1/2" or so if you need a little more playroom.