Hi mekanik
Thank you very much for the thought. I tried a dome nut but I just didn't suit the look of the parts so I moved away from it. I think after a good bit of figuring out I am getting there with the caps.
Many thanks
Steve

Quote Originally Posted by mekanik View Post
hi Steve
Have you thought about using stainless dome nuts that you would fit on a cylinder head, maybe thin them down a bit.