Required For Installation Of Uni Lug Wheels. The standard factory lug nuts will not work with Race Star Industries Uni Lug wheels, you are required to use the Race Star Uni Lug Nut Kit for installation. Included. The Race Star Uni Lug Deluxe Closed End Kit includes: 10 lug nuts, 10 offset washers, 2 chrome valve stems, 2 hub centric rings and 1 chrome thin wall socket. Application. This Race Star Uni Lug Nut Kit is specifically designed to install Race Star Industries wheels on the rear of a 1994 to 2014 Ford Mustang. These lug nuts will not fit factory style wheels.