You can wait for them to be released in the states and also pay a little more or, you can order from Japan.
53525 3x18mm Titanium Turnbucle Shaft $7.00
53526 3x23mm Titanium Turnbucle Shaft $7.80
53527 3x32mm Titanium Turnbucle Shaft $9.60
53528 3x35mm Titanium Turnbucle Shaft $10.40
Hiro's got them.