I brought some from pro sport (based in Salisbury Wiltshire) they were a good price too if I remember correctly. Came with the bolts.
Let me know if you want the contact details and I'll look them up.
Look up JJC RACE AND RALLY on ebay. Its where I got mine from and were recommended by a few members on here and other forums. There an offshoot of Demon Tweeks apparently, just a bit cheaper. A bit like euro car parts and carparts 4 less.
Liverpool