I got the screws and washers on Ebay. If you want the hardware, I have more, and I can sell you them for what I paid, it was only 5 bucks for the screws and 5 for the washers. Here is the link for you. Or you can buy them from me, I would sell them for 10 bucks shipped.
http://www.ebay.com/itm/Set-50-8-x-3...item415bc17334
http://www.ebay.com/itm/FLAT-WASHERS...item5aeb14e782