The British weather had taken a visible toll on the disc securing bolts on my VX. Due to the rather complex construction of the originals I couldn't just get stainless replacements. A bit of investigation found this supplier. They supplied the bolts listed in titanium. They proved to be a perfect fit. They certainly look far better and they should be lighter, stronger and far more weather resistant.
They are even cheaper than genuine Suzuki items!
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=121099152335#ht_500wt_1064