Good source for M9 internal lock-washers in Europe?

[skrunk]

hi folks,

I'm trying to find a good source for M9 (3/8") size internal lock washers for audio jacks.
Like the ones you'd find in Boss pedals, quite thin and skinny.
I always have trouble finding these and wish more suppliers would carry them.
I would have thought they'd be a staple part.
I normally use the ones with the external teeth (from Musikding) which seem to be easier to find, but they're too big for trying to
fit jacks above the pots at the front of a 1590B (I usually center the jacks on a 1590BB about 10mm from the base of the box which gives the external washers enough room for the ridge on the lid to close down on it.)
Ditto the black M10 ones from Banzai, they're just too wide and thick.

I found these on Mouser:
http://ie.mouser.com/ProductDetail/Vishay-Spectrol/5120008/?qs=sGAEpiMZZMtdU8v%2fCHkq3xvVcAmcV%2fqb

which I think is what I'm after, but I don't ever order form there.
I do order from smallbear from time to time though, but it doesn't look like they have any.