Personally I use only Poggipolini, altho I do have the swingarm bolts from Mark. I use my own AL7075 dogbones.
here you can sorta see the various Ti bolts holding the caliper together, on the fork leg, and the rotor on the wheel:
Poggipolini part numbers for:
M8x40 Allen head for caliper: 101100840
M10x35 Hex for caliper to fork: 102101035
Alu banjo bolt M10x1: 501251000
M8x20 for rotor are special parts with a different head. they are usually listed as Ducati. For those who know what NCR (not national cashregister) means and meant, it now belongs to Poggipolini.
They have some really good stuff. Especially the Kaylock nuts are very good, a definite improvement over normal selflocking nuts where temperature and or space is critical.
As an example, the M6 nuts on the exhaust headers where both problems are evident.
In my street Skorpion,
all bolts/screws/nuts are either alu or Ti except or the cylinderhead bolts and the 3 long M6 Allenheads on the timing chain side. That includes Mrk's Ti swingarfm axle and nuts.
The racer is the same except that the swingarm axle is hollow-turned steel since Ti in not allowed by the FIM.
Hobbies can get expensive, but the reduction in weight is not marginal...