Fulton 3"x3" Fold Away Bolt-On Hinge KitThe Fulton bolt-on hinge kit converts standard trailer tongues into fold-away configures while preserving the existing coupler. This kit delivers strength at the pivot point with precisely machined heavy-duty hinges made from die cast steel.Features: Easy to install bolt-on application; Includes complete instruction manual; Includes all mounting hardware; Only recommended for trailers with steel tongues; Z-Max 600 Hour Clear Zinc finish for superior corrosion protection; Specifications: For 3" x 3" Trailer tongues with material thickness between .188" and .120"; GTW: Up to 5,000 lbs.; Pivot Length: Up to 48";