What Are Square U Bolt?
It is a U-shaped bolt with a square head, which can also be recognized as a pipe clamp with threads. The square part can clamp the accessories that need to be connected, and the two ends of the threaded rod are tightened by nuts to form a firm structure.
If you are looking for high-quality square U-bolts, T&Y Hardware is your ideal choice. With 22 years of rich experience as a fastener manufacturer and supplier, our products are exported all over the world and have won the trust of a wide range of customers.
We specialize in supplying large and small square U-bolts that adhere to international standards, offering a comprehensive range of conventional sizes including 2 inch, 2.5 inch, 3 inch, 3.8 inch, and 4 inch square u bolts, which are not only excellent in quality, but also reasonable in price and very cost-effective.
What’s more, T&Y Hardware also supports OEM and ODM customized services, and can tailor-made exclusive fastener solutions according to your specific needs.
Square U Bolt By Feature
Our square U-bolts are made of a variety of high-quality materials to meet your different needs. Please contact us for professional material selection advice to ensure that you purchase the fastener that best suits your usage scenario and avoids waste of resources.

Ubolt made of galvanized carbon steel has two treatment methods: (blue, white, yellow) color zinc and hot-dip galvanizing.
Size: M6-M64

Can be made of SS 201, 304, 316, 316 L, and other materials, which have strong corrosion resistance a beautiful appearance.
Size: M6-M16

Made of high carbon steel and black oxidation treatment, it is suitable for ultra-high strength connection.
Size:M8-M64

Square U bolt with nuts and plates, the whole set is more convenient to buy, a one-stop shopping experience.
Size:M6-M64

- Customer feedback
- Our various certificates
- Thread Types
- Strength Grade
- Material


UNC thread, UNF thread, ISO thread, Metric thread, Imperial thread, Full thread, Half thread, Coarse thread, Fine thread
4.8 grade、6.8 grade、 8.8 grade、10.9 grade、 12.9 grade
A2-70、A2-80、A4-70、A4-80
Carbon Steel:Q345 (16Mn)25#,35#,45#
Stainless Steel: SS202、SS304、SS316、SS410、SS420、SS430
Duplex stainless steel : S32750、S32760、S2205、S2507
Alloy steel: Inconel 600、 Inconel 625 、Inconel 718 、 Monel 400、 K500
Aluminum, titanium alloy, and brass
Related Product
square u bolts are usually used for truck leaf springs, pipe fixation and connection of square steel structure, etc.
It is necessary to accurately measure the internal and external width, overall height, and length and diameter of the threaded part of the square U-bolt. Only based on these detailed data can we tailor a satisfactory product for you.
We usually keep stock for standard items,If not special items, No MOQ is required






