Definitely comes with the kit, look out for what looks like thick aluminium washers.
On Fri I decided I needed to free up my tail blades a bit and it did get rid of a slow wag. I rubbed down with 320 grade wet & dry on glass, just a few strokes each side, then polished with 800 grade, no snagging at all now.
Before they felt tight without the nut done up, now I have some adjustment, made a big difference.