Best Square U-Bolts of 2025

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Square U-bolts are a type of fastener that are commonly used in various industries such as automotive, construction, and manufacturing. They are designed to secure round objects such as pipes, cables, and tubes to flat surfaces. Square U-bolts are made of high-quality materials such as steel or stainless steel, making them durable and resistant to corrosion. They come in various sizes and finishes to accommodate different applications. Square U-bolts are ideal for stabilising and securing loads and are a reliable choice for many professionals.
At a Glance: Our Top Picks
Top 10 Square U-Bolts
sourcing map Square U-Bolts with Nuts and Washers
The sourcing map U-Bolts feature an M8 thread diameter and are designed to fit square rod sizes of 60mm. With a total length of 120mm, these U-bolts provide a secure fastening solution for various applications. The included hex nuts and frame plate, measuring 90 x 25mm, ensure stability and strength. Additionally, the round washers enhance the connection by distributing weight evenly, making it easier for you to attach components to pipes or wood securely.
YINETTECH 4 Sets M8 Stainless Steel U-Bolts
The YINETTECH M8 U-Bolts come as a complete set, including four U-shaped bolts, baffle plates, washers, and nuts, making installation straightforward. With dimensions of 56 x 100mm and an inner width of 42mm, these bolts are versatile and can fit various applications. Made from high-quality 304 stainless steel, they offer exceptional durability and corrosion resistance, ensuring a long service life. Their easy-to-use design allows you to efficiently secure items, giving you peace of mind in your projects.
sourcing map 304 Stainless Steel U-Bolts Set
The sourcing map U-Bolts are designed to provide strong and reliable connections for various applications. With an M8 thread diameter and an inner width of 102mm, these U-bolts fit rods measuring 100mm in length, ensuring a secure fit. The hex nut size of 13 x 6.2mm makes it easy for you to tighten securely. Made from 304 stainless steel, these bolts are resistant to corrosion and rust, making them ideal for use in wet environments. The package includes plates and nuts, ensuring you have everything you need for a complete installation.
sourcing map Square U-Bolts with Nuts and Washers
The sourcing map U-Bolts are designed for a variety of fastening applications. With an M8 thread diameter, they fit square rods measuring 40mm in inner width, ensuring a secure fit. The total length of 120mm provides ample reach for various projects. Additionally, the included hex nuts and round washers facilitate a tight connection, enhancing stability and safety in your installations. Made from carbon steel, these U-bolts offer excellent resistance to rust and corrosion, ensuring durability and longevity.
sourcing map 304 Stainless Steel U-Bolts Set
The sourcing map U-Bolts are crafted from 304 stainless steel, ensuring durability and resistance to corrosion, making them ideal for wet environments. With a thread diameter of M10 and an inner width of 100mm, these U-bolts provide a secure fit for various rod sizes. The deep and clear threading prevents slipping, giving you confidence during installation. Additionally, the included plates and nuts enhance convenience, ensuring you have everything needed for a firm connection while using these bolts in applications like trailers or plumbing.
Uxcell Stainless Steel U-Bolt for Trailers
The Uxcell U-Bolt features a thread diameter of M8, ensuring a secure fit for rods sized at 30mm, with a total length of 60mm. Made from durable 304 stainless steel, it resists corrosion and rust, making it ideal for wet environments. The included hex nuts and plates provide added convenience, ensuring that you can easily secure components without worry. With a deep and clear thread design, you can trust that the Uxcell U-Bolt will hold firmly in place, offering peace of mind during use.
sourcing map U Bolts for Construction and Plumbing
The sourcing map U Bolts are designed for securely fixing objects to pipes or wood, making them ideal for various applications such as trailers and plumbing. With a specification fit for square objects of 40mm, these bolts ensure a robust connection thanks to their carbon steel construction, which offers impressive anti-rust and corrosion resistance. The U-shaped design, featuring threads at both ends, allows for easy connection with nuts and washers, providing you with a reliable fastening solution for your projects.
4 Steel Square U-Bolts with Nuts
The CSS U-Bolts are high-quality steel square bolts designed for various applications. With a size of 60x60x10mm and complete with M10 threaded locking nuts, they provide secure fastening for different fixtures. You can use these bolts for frame fixtures, ensuring a stable structure. They are also ideal for cable to wall connectors or clamps, making installations easier. Additionally, they support pipework and conduit holders, enhancing your plumbing or electrical projects. Overall, these U-Bolts offer versatility and reliability for your needs.
PATIKIL M6 Square U-Bolts Kit with Plates
The PATIKIL U-Bolts Kit is crafted from 304 stainless steel, ensuring excellent resistance to rust and corrosion. With a thread diameter of M6 and an inner width of 26mm, these bolts provide a strong and stable connection, making them ideal for securing various objects. You will appreciate their durability, as they can withstand heavy loads without compromising on strength. The kit includes four square U-bolts, four plates, and eight nuts, making it convenient for your installation needs.
Fadbudss 4 Pack Stainless Steel U-Bolts
The Fadbudss U-Bolts feature heavy-duty construction from high-quality stainless steel, ensuring excellent rust resistance and durability for various applications. Their versatile U-bracket design provides maximum stability, making them perfect for securing pipes and mounting vehicles. Each pack includes all components needed for installation, simplifying the process for you. With precision design, these bolts fit perfectly into pre-drilled holes, offering a secure hold and reducing the risk of loosening over time.
During our square u-bolt research, we found 306 square u-bolt products and shortlisted 10 quality products. We collected and analyzed 4,782 customer reviews through our big data system to write the square u-bolts list. We found that most customers choose square u-bolts with an average price of £7.94.
The square u-bolts are available for purchase. We have researched hundreds of brands and picked the top brands of square u-bolts, including sourcing map, YINETTECH, Uxcell, CSS, PATIKIL. The seller of top 1 product has received honest feedback from 20,002 consumers with an average rating of 4.8.

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.