Reese Towpower 7008200 Chrome Interlock Hitch Ball

Combined with interlock ball mounts, provide a one wrench tightening system. Place the hitch ball shank through the hole of the ball mount, align the hex shapes and tighten to specification. When installing, torque all 3/4 shank balls to 160 ft. lb. and all 1 to 250 ft. lb.