Figured I'd post this in case this happens to someone else.
I called KYB agian and got someone'* voicemail.. I left a message but just incase they don't get back to me, I did some investigating.
I wasn't real familliar with nut sizing but an example for a metric nut is:
The 16 is the diameter in mm and the 2.0 is the thread pitch.
I found a chart for the thread pitch here: http://mdmetric.com/tech/tic1b.htm
Some sites with different size lock nuts(the KYB has a lock nut) are:
(also explains what type of metal to use)
I'm almost positive the diameter is 16mm and I've only seen two options for thread pitch so far (1.5 & 2.0) so hopefully I'll be able to match it up.
I'll do some measuring when I get home.