This hub comes fully assembled with pre-greased bearings, which reduces messy installations and makes connection onto the axle much easier. Galvanized construction ensures long-term reliability. Hub kit includes carry case, dust cap, cotter pin, and lug nuts.• 6 stud x 5-1/2" bolt circle diameter• 1-3/8" tapered to 1-1/16" straight shaft• 6-3/4" wheel flange diameter• 1.98" hub inner diameter• 16" maximum wheel size• 1, 750-lb. weight capacity Galvanized construction ensures long-term use Includes case, dust cap, cotter pin, and lug nuts | 6-Stud Trailer Hub Kit With Tapered Spindle