Hydraulic front brake set up

Troops -- was checking out the set up on my hydraulic front brake conversion, couple of things I'm not too sure about:
1. Where can I get the best front axle nuts that will defo not "bottom" out on the end of the spindle? the ones I have look real tight on length?
2. I have 2 locating washers in the links as there should be but should there be any other washers on the set up to bolt the front wheel into place & spin freely?
Cheers G
1. Where can I get the best front axle nuts that will defo not "bottom" out on the end of the spindle? the ones I have look real tight on length?
2. I have 2 locating washers in the links as there should be but should there be any other washers on the set up to bolt the front wheel into place & spin freely?
Cheers G