M3 mini lock nuts, can anyone help?

[gazhillAE]

Guys

See the attached photos, one is an associated 4/40 mini lock nut and the other one is a Schumacher m3 lock nut.

Now what I'm after are some m3 mini lock nuts the same size as the 4/40 ones.
I'm guessing they are available but it's hard to tell looking at photos if there the same size as the larger Schumacher m3 nuts....

Any ideas?

Gaz

http://smg.photobucket.com/user/hill...504A3.jpg.html
http://smg.photobucket.com/user/hill...C0737.jpg.html