Jim K wrote:Titanium bolts? I don't know how they compare to steel ones. This is something the mechanical guys can tackle, the
3M's -Maurizio, Mats, Micke? As far as I know, Ti bolts are only used in corrosive environments but lack in tensile strength. Hardness and tensile strength are different things.
Jim K.
Ti bolts is nice stuff, a bit overdone for what you want here. As the price will shock you a little bit.
I'm not sure what grade the standard bolts are, my memory recalls a 10.9 grade.
*edit*
JimK states in the post below 12.9 grade, his memory is more often refreshed with this stuff
*edit*
The standard bolts will just do fine with the correct torque, secured with the correct locktite will do the job!
So for the sake of improving common knowledge:
A Ti gr5 bolt is strength wise (Rp0.2!) just below (90%) a 10.9 grade bolt.
Ultimate strength is just above a 10.9 bolt, but you don't want to use a bolt in that region
But the real advantage: low young's modules, so larger elastic deformation due to the pre-tension.
Which says something about the quality of a connection.
Simply explained, setting/relaxation behavior in the connecting parts has less impact on the end tension in the connection.
Ti has a low density, so low mass with regards to a steel bolt.