CURT 5th Wheel Trailer Hitch Safety Chain Anchors, Fits Industry-Standard Rails Model 16000CURT 5th Wheel Trailer Hitch Safety Chain Anchors, Fits Industry Standard Rails Model 16000 The grand lifestyle that goes hand in hand with 5th wheel towing is made perfect in the details. You can talk all you want about whose RV hogs the most road or whose 5th wheel hitch can handle the most tonnage, but when you get down to it, the best hitch and trailer setup in the world can never reach its full potential without the right accessories to back it