Thanks all, fw500a that is precisely what I need (ed). I had a call in to the SMB store before I posted this inquiry here and they since got back to me. I also was able to talk them in to sending me 20 washers (at .25 apiece) with the 20 caps I ordered. Not a horrible price but not a good one, and Boywonder I wonder why they are so reluctant to sell the washers too. He really didn't want to but did. The funny thing is that he wanted to tell me how mine 'shouldn't be rusty because they're stainless'. Well, they are.
Thanks everyone, problem solved.