If you still want to experiment, look for part S476 at this webpage:

http://www.sullivanproducts.com/Fuel...sMainFrame.htm

Or buy from Tower Hobbies:

http://www3.towerhobbies.com/cgi-bin...&I=LXBWL5&P=RF

As explained above, reinforcing the hole is as good idea as using some thread locking means.