The contact son owns a 2020 Keystone Hideout RV. The contact stated while her son was driving approximately 60 MPH, the four rear trailer wheels disconnected from the body of the trailer simultaneously. The contact was informed that the lug nuts were sheared off. A police report was filed, and the trailer was towed to a local dealer. The vehicle was diagnosed but was not repaired. The manufacturer was informed of the failure and was awaiting a response. The failure mileage was unknown.