4 new Triumph domed nuts. They are Triumph 500 and 650 750 from 1969 to 1979. The thread is 5/6-24 UNF. If you are rebuilding or just gussying up the old machine here is something small but impactful you can do. We also have them available with the washers. If you don't see the item you are looking for in the store we can still get it for you.