When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Nothing unique. You just need the right thread size. I didn't like the black bolts, so I went to a hardware store (it took me 3 trips to find the right store that carried them) and bought shiny aluminum bolts. They look much nicer than the ones that come with the unit.
And don't worry about the length of the bolt. You have plenty of room to go deeper than stock.
If you're really interested, send me your home address in an email and I'll send you an extra bolt. I believe I have an extra one laying around. You can take this to the hardware store and match it up and get what you want. No charge. Just trying to help out.