Most of the rubber mounts /washers, and bolts seem to be listed as available as available at David Silver, I took a couple of part numbers from the parts diagram and typed into their website and they came up as available. Failing that you could try a local industrial fastner company, I have one near me in Essex and they are brilliant, I just take on my old nuts & bolts down there and they can match up most of the time.Might not get the nice flanged heads though, of the originals.