Can't find a part number

[Jimmytee]

I have used steel ones like the ones shown in previous posts but also found some that had the locking nut on the outside. I believe that's a good thing (pic below). I'm not sure I can find those again but would have to search.
Attachment 20648

The nut on the outside is how mine are. The one's I just put on my F6B are a Showchrome product. The one's on my Valkyrie, that look just like them , I got from Jake Wilson.