These heavy-duty ramp attaching brackets are designed to secure pin-end loading ramps directly to a truck, dock, or trailer deck for optimal safety and security. By pinning loading ramp tubes in the skid seat channel, ramps will stay fixed to a trailer deck or dock and won't slip off while heavy equipment is being loaded. These brackets allow you to quick set up and take down your ramps, as well as quickly swap between ramp sizes. Consider purchasing brackets wider than your ramps so you can slide the ramps in or out to accommodate different vehicles. Aluminum brackets must be bolted or welded to your trailer or loading dock before using your ramps.