Rear Camber/Toe Bolts - Prices and Part #s *pic*

These are used for adjusting your camber and toe in the rear. On most
240sx, being 12yrs+ old, these are usually rusted and fairly seized up.
You will most likely end up snapping/twisting them off if you try to remove them.

http://240sx.cubicdesign.com/images/misc/camberbolts.jpg