Is it a special bolt? If not Batiffs sp? Salvage might very well have it. OSH carries a bunch of stainless hardware too. Of course you could just call them to send you one. That is probably the easiest way. A service fee would be acceptable.
Speaking of Boss, does anyone carry Boss products anymore? I need the rubber filler for one of my racks.... I don't know what the thing is called, just the rubber nub that keeps the board off the rack....
John - I pretty sure they are under a new name let me see what In can do for ya. Good to see ya over the weekend, kids got pretty cranky thats we were blowne out on Sunday