[paulatt]

I have bought Thule Roofbars for my 2007 Jeep Commander with the recommended fittings kit 3040. I am following the fitting instructions and have placed the plate into the Commander side roof bar, placed the bar footplate on top and then need to screw the nut onto that bolt to hold it all in position. However, the bolt that has been included is too short. I do not have any thread on the bolt on which to screw the nut due to the thickness of the Commander side roof bar.
What am I doing wrong?