Thanks, Paul! I think I will weld the nut on one end. On the open end I can notch a flat spot and cross drill for a cotter pin to back up the nut.
'06 KTM 950 Adventure S
'12 Ram 2500, Cummins, 6-speed auto, Laramie Longhorn, RamBox
Must be part of your super-secret double-naught spy work with your low-level FEMA clearance and (snicker) Texas Security License, yes?