Secure low-profile brackets and heavy hardware to 3-inch trailer frames with a rugged, corrosion-resistant square bend U-bolt.

Keep your marine trailer hardware tightly locked in place with this heavy-duty Galvanized Square U-Bolt. Specially engineered with a low-profile length and a wide 3-1/16" opening, this industrial-grade fastener is designed to wrap perfectly flush around standard 3-inch wide square or rectangular steel tubing. It is the ideal choice for securing low-profile crossmembers, shallow bunk brackets, and frame accessories where minimizing thread protrusion is essential. Hot-dip galvanized for maximum defense against harsh marine environments, it withstands constant exposure to saltwater and road debris without rusting or losing strength.

Key Features

• Hot-Dip Galvanized Coating: Encased in a thick, protective zinc layer to provide superior rust resistance in both harsh saltwater and freshwater conditions.

• Tailored 3-1/16" Inside Width: Engineered specifically for a snug, non-slip fit over 3" square trailer frames, preventing shifting under heavy transit loads.

• Low-Profile 3-5/16" Length: The shorter length provides a clean, compact fitment on shallow brackets, eliminating dangerous excess thread overhang beneath the trailer.

• High-Tensile Thread Strength: Precision-cut 1/2"-13 coarse threads handle extreme clamping torque, ensuring your frame components remain structurally sound.

Technical Specifications