Hot Dipped Galvanized : U-bolts are made of Hot Dipped Galvanized，The white surface is a thick galvanized layer, which enhances the rust and corrosion resistance of the U-bolt. Hot Dipped Galvanized Dipped Square U-Bolts (1/2" D x 2 1/16" W x 6 5/16" L) for Boat Trailer.
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