The Lippert complete pre-greased hub assembly kit offers an essential solution for maintaining smooth operation and longevity of 3,500-lb. trailer axle hubs. It comes with everything you need, including a brake hub assembly, dust cap, cotter pin, 6-slot castle spindle nut, round spindle washer, and five 60° cone trailer lug nuts. ^Kit Includes: Complete pre-greased hub assembly with lug nuts, Brake hub assembly, Dust cap with plug, 1.75" cotter pin, 1" 6-slot castle spindle nut,Round spindle washer with 1.03" ID, 1.68" OD, 60° cone trailer lug nuts.