4R 5-1/4D BAR MOUNT BALL

InterLock balls and ball mounts act as a 1 wrench tightening system when used together. Standard hitch balls and ball mounts may also be used with InterLock products but require 2 wrenches for installation. Ball mount measurements: Length equals the distance from the center of the ball hole to the center of the pin hole. Drop equals the distance from the top of the shank to the top of the ball platform. Rise equals the distance from the top of the ball platform to the top of the shank.