I suppose you could, if you had lots, pack the bolt head side out with little washers...
ok, it was a silly idea.... but the initial reply is correct, single ring bolts are what you need. Not thateasy toget unless you lbs is into "singlespeed and fixies". Or old school bmx. When I went into my lbs asking for bolts for a spider, they looked as if I'd walked off the set of Ashes to Ashes, the kids lolled and said BMX haven't come with seperate spiders since they were born, basically......
I left feeling very old indeed.........