Thread size/type MP3 Axel

[Garm@n]

I am trying to buy a lock nut for my mp3 hub.  I found that for some strange reason the nuts loosen on the axel.  I have only taken this bike out 5 times so I am concerned that I will forget to check and then something goes wrong.  thanks

[e-lmer]

The recommended method is a torque arm to keep the nuts from coming lose.

http://www.e-bikekit.com/shop/products/E_Bike_Universal_Torque_Arm-31-15.html
is very popular.

I built my own to clamp over the fork and grip the tubes, but I have a shop to work in.

[MAGICPIE3FOCUSPOWER]

Yes those nuts has a lot of play.
You need some lock washers and Locktite.

[Garm@n]

Lock Tight is a good idea, but I would like to know the nut size and type for future reference.  Thanks

[MAGICPIE3FOCUSPOWER]

It's M14 X 1.5 thread size.

I have to say this axle is very strong compare to Crystalyte M12 axle (very soft).

[Garm@n]

 I have been to canadian tire and trying to find the right thread is very hard.  I hope this helps.  Thanks again