Be sure when using bolts that the straight shank of the bolt fits the hole tight. You will likely have to drill out to a bigger size and use custom length bolts. What you don't want is the threads of the bolt inside the holes as the diameter is smaller then the shank. Rivets hold tight because they swell when peened over, filling the hole completely. Not only does this hold tight, there is zero room for the bracket to slide. If you just shove bolts in and tighten them, the only holding power is the squeezing effect. The bracket can still wiggle around since the bolts are smaller diameter then the holes. Use longer then needed bolts so the threads are out side the hole, then cut off excess threads once together for a cleaner look.
Joe
