Jeez, do caliper bolts come with scene tax then?
8 stainless of an unknown grade for £32 from a motorbike shop or 10 with a low head from a bolt supplier for £7 ! or the price of 1 titanium bolt !!
Plated 8.8 are even less.
I know you pays your money and take your choice but I can't see why they are 4 times the price, more investigation is required...