"Full length 1/4in. keyways with stubs at axle ends. For fixed or live axles. Has 1in. dia. step down at end to 3/4in., 2in. ends with 3/4in. x 16 threads. U.S.A. Keyway in. 1/4, Length in. 36, Application Go-Kart axle. 1in. outside diameter Two 1/4in. opposing keyways 3/4-16 threads Zinc plated"