Secure your wide boat trailer frames and heavy-duty brackets with a rugged, corrosion-resistant square bend U-bolt.

Keep your marine trailer components tightly locked down with this heavy-duty Galvanized Square U-Bolt. Specifically engineered to wrap flush against 3-inch wide square or rectangular steel tubing, this industrial-grade fastener is perfect for mounting crossmembers, bunk brackets, and mid-frame accessories. Hot-dip galvanized for maximum defense against harsh marine elements, it is built to survive continuous exposure to saltwater, road grime, and intense humidity without rusting or weakening.

Key Features

• Hot-Dip Galvanized Finish: Encased in a thick zinc protective coating to deliver exceptional rust and corrosion resistance in punishing fresh and saltwater environments.

• Precision 3-1/16" Inside Width: Designed specifically to fit snugly over standard 3" square trailer frames, ensuring a secure, non-slip hold that won't damage the steel.

• Heavy-Duty Thread Strength: Features standard, clean-cutting 1/2"-13 coarse threads capable of handling extreme clamping forces without stripping.

• Low-Profile 3-13/16" Length: The compact length provides a clean finish with minimal excess thread protrusion, reducing snag hazards beneath the trailer.

Technical Specifications