Any black button head screws would look fine. Just match up the thread pitch, I assume they are metric. Fastenal would definitely have what you need but Ace, Lowes, or Home Depot might as well
1/4" thick, 2" wide, 12-3/8" long aluminum. Slots are 3/4" by 1" and they are 4-7/8" and 11-5/8" on center from the end. Easy to make if you don't want to spend $30.
1/4" thick, 2" wide, 12-3/8" long aluminum. Slots are 3/4" by 1" and they are 4-7/8" and 11-5/8" on center from the end. Easy to make if you don't want to spend $30.