Boy, that's a good one. Maybe find some titanium threaded rod and go the studs-n-nuts route?

Will this help you get started?

http://hypergarage.com/store/index.p...f030beaa56d8a2

Looked around a little bit-no luck. A machine shop can make you a set of studs.

http://www.mcmaster.com/#89055k36/=qg8qw