I was wondering if I could use pins instead of rivets. I don't want to have to buy 2 or 3 different drill bits at $13 each for rivets when i can get roundstock for a lot less. Also, does the size of the rivet match the size of the roundstock I need? Please include any tips. Thanks! Just to clear it up, I don't want to spend the extra $ on the rivet drill bits yet and am looking for a cheaper alternative.