I wondered if anyone can help me from where can i buy a chrome coated nut which tightens the steering bracket to the column situated under the handle bar?

I think you would need Honda p/n 90304-415-000. My CB400 NC36 has it. See David Silver for instance: https://www.davidsilverspares.co.uk/CB9 ... art_80049/. This nut has been used on many many Honda bikes for many years.

Thanks mate, I have just ordered one now.

Have you fitted this yet?? Is it the right nut, could really do with changing mine, looks rather tattered