According to the assembly instructions on miter saw utility vehicle AC9944, the four carriage bolts with lock washers and lock nuts should be used to secure the miter saw to the stand PLUS the four extra 1-1/2" carriage bolts if mounting a sliding miter saw (These extra bolts have no washers, lock washers or lock nuts to secure them down). I'm trying to secure a brand new MS1290LZA to the stand. I may be overlooking something, but it appears that only four bolts can be used because the other carriage bolts won't fit into the additional holes on the miter saw. The miter saw does have 8 bolt holes for securing, but I was hoping that I could get a little clarification. Just don't want the miter saw to ever fall off while storing or transporting.