NS400R M8 TITANIUM flange nut. M8 x 1.25mm thread. Grade 5 NSR250 MC21
TITANIUM M8 Flange nut (1.25mm thread)
DIN 6923 spec
Fits a 13mm spanner
These TITANIUM nuts are manufactured from titanium 6AL/4V (Grade 5) and are stronger, lighter and corrosion proof unlike your originals.
Weight is around about half the weight of the original steel item.
Honda part no: 94050-08000
Suzuki part no: 08319-31087-000
Weight = 4.3gm