8mm Titanium - Nylon Flanged Nuts.
AUD2.50
8mm Nylon Flanged Nuts $2.50 each.
These nuts DO NOT fit kart wheels..........flange is way to large and the nylon is not suitable for multiple usage.
TC4 - GR5
**** If you haven't used Titanium/Nylon before, the nylon part is the weakest part of the whole unit. Possibly put something like Never-Seize or similar on the bolt to ease through the nylon. They can pop out, tighten slowly.
(NB; Check your racing organization if these are legal to use).