Mounting Corson Piper's Surf racks on top of a Gladiator Tower. I held onto my racks from the Big Toe because this is the only way I have found to cary my longboards safely and out of the way. Gladiator Tower with out the bimini.Mounting plates for the racks.Piper's surf racks.This is my centerline taken from the joint where the tower bolts together. These are the holes to be tapped out to a 1/4x20 machine bolt
.Tap tool tapping
First plate mounted with counter sunk machine bolts.