Description
h2>Product Overview
These Anina 4PCS Square U Bolts are precision-engineered for heavy-duty applications. Made from high-grade stainless steel, they offer superior resistance to rust and corrosion, making them ideal for outdoor and industrial environments. Each bolt measures 3/8″ in diameter, 4″ in width, and 7″ in length, designed to securely fasten 3×3″ square objects such as RV bumpers, axles, and beams. The set includes 4 U bolts, 4 frame plates, and 4 M10 hex nuts for easy installation. With a weight of 2.48 pounds and dimensions of 7.36 x 3.74 x 4 inches, these bolts are compact yet robust. The U-shape design ensures maximum grip and stability, preventing locking failure due to insufficient surface contact. Perfect for boat trailers, ski boats, sailing trailers, snowmobiles, and outdoor bicycle trailers, these bolts deliver reliable performance in demanding conditions.
Usage

These U bolts are widely used in marine, automotive, and industrial settings. Ideal for sailboat trailers, RVs, and snowmobiles, they provide secure fastening for beams, axles, and other structural components. Their stainless steel construction makes them suitable for outdoor use, where exposure to moisture and saltwater is common. Whether you’re a DIY enthusiast, professional mechanic, or industrial user, these bolts offer a durable, easy-to-install solution for heavy-duty applications. They are also compatible with various equipment and can be cut to size if needed, offering flexibility for custom installations.
Why Choose Us
Our Anina U bolts are manufactured with precision and quality control to ensure long-term performance. The stainless steel material provides excellent corrosion resistance, making them ideal for marine and outdoor environments. The U-shape design ensures a secure grip and prevents locking failure, while the included frame plates and nuts simplify installation. Each bolt is tested for strength and durability, ensuring it can withstand heavy loads and harsh conditions. We offer reliable customer support and clear installation instructions to ensure a smooth experience. Our products are designed for both professionals and DIY users who demand quality and reliability.
Key Features
- Stainless steel construction ensures rust and corrosion resistance for long-lasting performance in marine and outdoor environments.
- U-shape design provides maximum grip and secure fixation, preventing locking failure due to insufficient surface contact.
- Complete set includes 4 U bolts, 4 frame plates, and 4 M10 hex nuts for easy and clear installation.
- Designed for 3×3″ square objects, ideal for RV bumpers, axles, beams, and other industrial applications.
- Customer support and clear installation instructions ensure a smooth and hassle-free experience.
Our Anina U bolts are manufactured with precision and quality control to ensure long-term performance. The stainless steel material provides excellent corrosion resistance, making them ideal for marine and outdoor environments. The U-shape design ensures a secure grip and prevents locking failure, while the included frame plates and nuts simplify installation. Each bolt is tested for strength and durability, ensuring it can withstand heavy loads and harsh conditions. We offer reliable customer support and clear installation instructions to ensure a smooth experience. Our products are designed for both professionals and DIY users who demand quality and reliability.
Key Features
- Stainless steel construction ensures rust and corrosion resistance for long-lasting performance in marine and outdoor environments.
- U-shape design provides maximum grip and secure fixation, preventing locking failure due to insufficient surface contact.
- Complete set includes 4 U bolts, 4 frame plates, and 4 M10 hex nuts for easy and clear installation.
- Designed for 3×3″ square objects, ideal for RV bumpers, axles, beams, and other industrial applications.
- Customer support and clear installation instructions ensure a smooth and hassle-free experience.
- Stainless steel construction ensures rust and corrosion resistance for long-lasting performance in marine and outdoor environments.
- U-shape design provides maximum grip and secure fixation, preventing locking failure due to insufficient surface contact.
- Complete set includes 4 U bolts, 4 frame plates, and 4 M10 hex nuts for easy and clear installation.
- Designed for 3×3″ square objects, ideal for RV bumpers, axles, beams, and other industrial applications.
- Customer support and clear installation instructions ensure a smooth and hassle-free experience.
FAQ
What are these U bolts used for?
What are these U bolts used for?
These U bolts are ideal for securing beams, axles, and other structural components in trailers, boats, RVs, and industrial applications. Their U-shape design ensures a secure grip and prevents locking failure.
Are these bolts rust-resistant?
Yes, these U bolts are made of stainless steel, which provides excellent resistance to rust and corrosion, making them suitable for outdoor and marine environments.
Can I cut these bolts to size?
Yes, these U bolts can be cut to size if needed, offering flexibility for custom installations. However, use appropriate tools and follow safety guidelines.
What’s included in the set?
The set includes 4 U bolts, 4 frame plates, and 4 M10 hex nuts, making installation easy and clear. Lubricants (not included) can be used to prevent wear during installation.
Are these bolts suitable for boat trailers?
Yes, these U bolts are specifically designed for boat trailers, ski boats, sailing trailers, and other marine applications. Their stainless steel construction ensures durability in saltwater and outdoor conditions.




National Hardware N222-422 2193BC U Bolt in Stainless Steel,#132-1/4"x1-1/8"x2-1/4"
Reviews
There are no reviews yet.