CURT Clevis Pin Hitch Ball Mount, Fits 2-Inch Receiver, 6,000 lbs, 1-Inch Hole Model 45821CURT Clevis Pin Hitch Ball Mount, Fits 2 Inch Receiver, 6,000 lbs, 1 Inch Hole Model 45821 CURT specialty ball mounts are a group of exceptional towing products, built to succeed where others fear to tread. From the back roads of overrun forests to the muddy fields of small town farms, towing looks a little different, and that means different demands on your towing equipment. CURT offers a full lineup of unique ball mounts that are made to tackle the