Abstract: A device for mounting accessories such as roof racks, luggage racks, spoilers or wings to the exterior surface of vehicles such as recreational vehicles, motorhomes, or conversion vans. The device includes a tapered mounting foot having attached thereto a mounting plate which permits generally vertical access to downwardly projecting mounting screws used to attach the accessory mounting plate to the exterior surface of the vehicle. The downwardly projecting screws engage a corresponding set of pre-drilled mounting holes in the vehicle exterior, while a second set of upwardly extending screws secure the mounting plate to the tapered foot of the accessory. Accordingly, the accessory is easy to install and remove, and can be easily retrofitted to existing vehicles without disturbing interior appointments such as upholstery, headliner, or wood trim.