Fulton Fold-Away Bolt-On Hinge Kit 3" x 4" Trailer Beam, Rating 7,500 lbs., 48" Pivot, Z-Max 600 Zinc Finish Z-Max 600 Zinc Finish. Rating 7,500 lbs. Limited 5-Year Warranty. Box Dimensions: 5"H x 8"W x 10"L. Weight: 13.0lbs.