Seized axel nut - how loosen ?

[Evil Rabbit]

The axel nut on one side of my front wheel has seized. When I turn it with an allen-key to loosen it, so I can drop the wheel out, it just turns axel on the bearings (if my terminology is right) - whats the best way to loosen it?

 

[Herzog]

Penetrating fluid...available from Wickes, B&Q etc.

 

[02GF74]

post a photo - a nut that you are undoing with an allen key?

 

[PpPete]

I'm guessing something a security skewer ?

 

[Evil Rabbit]

post a photo - a nut that you are undoing with an allen key?