Is The Fulton Fold-Away Coupler Hinge FHDPB330301 Made Of Mild Or Cast Steel?
Updated 09/02/2025 | Published 08/08/2025
Question:
I am considering adding a weld-on fold a way tongue attachment to a boat trailer tongue. Question—Is the hinge made of mild steel that can be welded with standard welder or is it made of cast iron which requires a specially cast weld?? Thank you
asked by: James W
Expert Reply:
Hello James, good question. The Fulton Fold-Away Coupler Hinge # FHDPB330301 is made of cast steel. All welding must be performed by a certified AWS welder. Making sure casting is straight and fully seated on the tongue tube. Weld complete on all four sides using a 3/16” minimum fillet weld. This is right from the Fulton instruction manual. I have linked those instructions below for your reference.
What kind of trailer is this going on?
(click to enlarge)
Jesse M.
9/2/2025
Hey James, did you decide to go ahead with adding the fold-away tongue attachment to your boat trailer? I'm asking because your experience could help others considering similar modifications.