When mounting MasterFit Roof Boxes to the Rhino-Rack Heavy Duty cross bars, you will need a RUBK-MF Fitting Kit. This is a set of 4 square u bolts designed to attach the MasterFit Luggage Box directly to the Heavy Duty Style Cross Bars.
- Fits the Rhino-Rack Roof Box range to the Rhino-Rack Heavy Duty style cross bars
- Easy to install
- Powder Coated Steel plates that resist corrosion