Need Help Selecting Fender
#26
#27
Starting from the brake bridge and moving along the brake bolt I think you should have...
[brake bridge]-[convex washer*]-[reflector bracket]-[thin washer]-[nut]-[thin washer]-[fender bracket]-[thin washer]-[nut]
*a convex washer, similar to the one between the brake and the brake bridge, will allow you to get maximum clamping force around the brake bridge. A bike co-op or bike shop will likely have a convex washer if you can't find one.