Originally Posted by wingman2

Hi mate, I have used several differant 'US' type axles, and found by putting a very small spacer, or washer on the hub that clamps onto the axle, you can do the screw up tight enough so that it does not slip on the axle, but no so tight that it puts excessive force onto the axle itself. The spacer/washer goes on the threaded part of the screw between the two halves that clamp together once you have tightened the screw. Hope that makes sense. I would also say that my favorite axle is the Corally axle that takes the Corally type wheels. The design is really superb, but it will only fit on Corally chassis's of course.