Thank you everybody! I use 1/4" bolts for fasteners and 1.5" aluminum standoffs for the spacers. Looks like a lot of work but it really isn't! You gotta let the machine do all of the work! All I did was paint it and assemble it. This was my first big business sign. I showed it off at a local business showcase and got 6 orders for different businesses off of this one sign. I didn't know that I was going into the sign making business, just kind of fell right into it!