Thanks Steve and Ixo.
As for the blue anodised bolts, I used metal turned bolts, soaked in airbrush cleaner for a couple of minutes, then once dried I brush painted on Mr. Metal Primer. Once that was dried I airbrushed them with Alclad Transparent Blue. If you want a lighter shade of blue then you could also use Alclad Hot Metal Blue which is also transparent.
Lemme know if you have any more questions