Capiche 50
Phil
you should not need star washers or sand paper.
just regular washers with the nuts done up tight like that terrible drawing I posted.
Thats all I use.
If you are on a grass field then maybe add a dot of silicone or cyano between spat and u/s from above to limit chance of rotation.
its all I use..
no talk of deals on here edible... email me ! to the address I gave you..