Hey all.

Ok, as you can see in the pic I don't have a whole lot of thread to screw the prop nut onto.
I don't think this looks very safe as the nut in the pic is done up as far as it can go.
As this is my first .15 size engine I'm not sure if it's because the APC prop has such a thick hub, or if there is another reason.
The engine is an ASP, or Magnum, don't think there is much diff nowadays.

Anyhow, your help would be appreciated.
Thanks in advance.