would this be suitable for the rose joint on the panard rod on a de dion..

http://cgi.ebay.co.uk/1-2-UNF-Studded-Rose-Joint-Male-Male-TRACK-ROD-END_W0QQitemZ190255677542QQihZ009QQcategoryZ43120QQtcZphotoQQcmdZViewItemQQ_trksi dZp1713.m153.l1262

Looks fine to me.
Where will the stud be mounted to?

Not sure, but it doesn't look like there is any safety washer to keep the socket from popping off the ball if there is a failure. That makes it a no-no for any critical component in my books.
Cheers.

was thinking of replacing the rosejoint..

i dont have the right length bolt and was looking at other options...