Diff guard nuts & bolts

Please could somebody help.
I bought a pair of defender diff guards from the Newbury sortout a few weeks ago and need a few replacement nuts and bolts for them. Does anybody know where I can buy the type needed - 8mm x 70mm with nylok nuts, not ones with the allen key head though?

Thank you
Chris

Ebay

Loads to choose from mate!

Daz

screwfix - or get a length of 8mm threaded bar - b&Q

ok, thanks everyone