Can anyone recommend somewhere where I can buy 1/2" bolts for my wishbones, suspension etc. Preferably in or around Newcastle, or even mail order.

I can't believe I work in engineering, but all our bolts are metric!!!

namrick are the best that ive found.they are online mail order

I'm the same as you Neil, all my stuff in work was metric, but i got High Tensile 1/2" bolts at my local motor factors

ebay is best i think. namrick charge a lot for delivery if i remember rightly

Just Google nut and bolt Newcastle, there's three or four suppliers.

I`ve just had the same problem trying to get some imperial bolts for my Westfield winter rebuild project. In order to get the order and what I wanted I`ve had to buy a job lot of imperial bolts which are 7/16 diameter and 2 3/4 inch long. These bolts are for mounting the wishbones. I also have new Nyloc nuts for them. I was planning on selling the excess bolts and nylocs as kits in the New year to recoup some money back. If the size is right for you and you`re interested drop me a U2U and I`ll work out a price.
Nick