M10 Ball Mount Clamp Bolt KitThe Ball Mount Clamp Bolt Kit is used to secure either the 2, 2.5 or 3 Hub to the ball mount.In the Box:1 M10 Ball Mount Clamp Bolt1 M10 Jam Nut1 M10 Split Washer1 M10 Flat Washer*Sold as an IndividualWARNING: This product can expose you to chemicals including Chromium (hexavalent compounds) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.