Need Nuts for Lucas solenoid

[angelfj]

In the photo below, the red arrow is pointing to a threaded stud on a Lucas starting solenoid. The car is a 1959 Triumph TR3A. I an trying to verify the correct thread size for the nut. I've been told that the correct nut is BSF 5/16-22. It would be nice to find these in SS or brass. Any help would be appreciated.

http://i135.photobucket.com/albums/q159/angelfj/nuts-1.jpg

[BTF]

I am not sure about the size exactly. Measure the screw across the thread. If it measures 5/16" and has 22 threads per inch, then you are on the right track.

We do usually stock BSF 5/16" nuts.
You can find them here:
http://www.britishfasteners.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=BTF&Category_Code=19