On Sun, 06 Jan 2013 06:16:42 -0800, sms
wrote:



What I really wanted to find was some stainless metric locking wing
nuts, but those don't seem to be available anywhere in the U.S.. SAE
sizes are readily available.

McMaster-Carr has stainless steel metric wing nuts, but they are not
locking.
www.mcmaster.com
Page 3208
http://www.mcmaster.com/#standard-wing-nuts/=kx22no

You can always put a locking washer with it.