Absolutely. Most cars, aeroplanes & many boats are all glued together these days. I worked in the water industry where we found that glued joints in many materials were stronger than the materials themselves. The joints were more reliable, accurate & watertight than a mechanically fixed joint. In a mechanical joint, the forces and stresses are all focused at the the fixing points, so if these points become corroded or work hardened, the joint is compromised. Glued joints (caveat IF DONE PROPERLY) distribute the forces along the entire surface area of the joint. AND, this is important, don't usually involve penetrating the surface of the jointing faces, so lower chance of corrosion & leaks. So a correctly bonded rail on the inside of the van, should be mechanically stronger than a bolted rail that involves drilling through the van floor.
