Anina 4PCS Square U Bolts Stainless Steel for Trailers Boats Tubes

Description

Product Overview

These Anina Square U Bolts are precision-engineered for heavy-duty applications in automotive, marine, and industrial settings. Made from high-grade stainless steel, they offer superior strength, durability, and resistance to rust and corrosion — making them ideal for use in wet or humid environments. Each bolt measures 3/8″ in diameter, 3″ wide, and 7″ long, designed specifically to clamp square objects such as pipes, plates, and planks securely without slipping. The set includes four U bolts, four frame plates, and eight nuts — all pre-assembled for quick installation.

Usage

These U-bolts are commonly used in trailer manufacturing, boat hauling, tube securing, sailboat trailers, and other applications requiring robust fastening solutions. They’re suitable for both domestic and industrial use — from clothing production to maintenance workshops. Ideal for DIY enthusiasts or professional installers who need reliable hardware that won’t loosen over time.

Why Choose Us

Anina’s U-bolts are manufactured with precision to ensure consistent performance and long-term reliability. The stainless steel construction resists rust, corrosion, and environmental degradation — making them perfect for outdoor or marine applications. Unlike standard round bolts, the square design provides a larger contact surface area, preventing slippage during use. Each set comes complete with frame plates and nuts, simplifying installation without requiring additional tools. Customer support is available to assist with any questions or technical issues.

Key Features

• Stainless steel construction ensures rust resistance and long-term durability in harsh environments.
• Square U-shape design provides superior grip on square objects, preventing loosening during use.
• Complete set includes 4 bolts, 4 frame plates, and 8 nuts — no additional parts needed for installation.
• Designed to fit 3 x 3″ square objects such as pipes, planks, or metal plates with ease.
• Customer support available for technical assistance or product-related inquiries.

FAQ

What materials are these U-bolts made of?

The bolts are made from high-grade stainless steel, which provides excellent resistance to rust and corrosion — ideal for outdoor or marine applications.

Can I use them on a boat trailer?

Yes. These square U-bolts are specifically designed for securing tubes, plates, and pipes on trailers including boat and ski boat trailers due to their strong load-bearing capacity and corrosion resistance.

Are the frame plates included in the set?

Yes — each set includes 4 frame plates and 8 nuts along with the 4 U bolts for complete, ready-to-install hardware.

What is the thread size of these bolts?

The threads are 3/8″ in diameter, suitable for securing square objects up to 3 x 3″ in dimension.

Are they easy to install?

Yes. The included frame plates and nuts make installation straightforward — simply align the U-bolt with your object and tighten securely using a wrench or socket tool.