U Bolt

What is a U Bolt?

A U Bolt or U Bolt Clamp is a bolt that is shaped like the letter “U”. This bolt usually has two threaded ends and is bent in the middle, forming a U shape.

Nam An produces U Bolt, available in large quantities of all sizes.

U bolts are commonly used to fix and clamp materials or structures, such as pipes, ducts, steel pipes, stainless steel pipes, steel bars, or other surfaces.

Structure of U bolt

U bolt is designed simply but has a solid and flexible structure, it includes the following main components:

1. Bolt body: Usually the central part of the bolt, has a curved U shape. The bolt body can be made from materials such as steel, stainless steel, or alloys with hardness and durability suitable for the requirements of the specific application.
2. Bolt head: The two ends of the U bolt are often threaded. These threads are used to fix and clamp materials or structures when the bolt is used.
3. Accessories: In some cases, U-bolts can be accompanied by accessories such as nuts, washers, nuts and gussets. These accessories are used to increase the fixing ability and adjust the position of the U-bolt.

Technical specifications of U bolts manufactured by Nam An:

• Pipe size (mm): Phi 21, 27, 34, 42, 48, 60, 76, 90, 114, 140, 169, 200, 220, 270, 325, 370, 430, 530

Phi (φ) is the actual outer diameter of the pipe.

• Pipe size (mm): DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 175, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500

DN is a nominal size, often used in industrial standard systems such as water and compressed air piping systems,… DN is not the exact size of the pipe diameter but a nominal value, making it easy to standardize and exchange products worldwide.

• Thread diameter d (mm): M6, M8, M10, M12, M16, M18, M20, M22, M24
• Production material: Steel / Stainless steel 201/304/316
• Surface treatment: Electroplated zinc; Stainless steel 201/304/316; Plastic coated; Hot-dip galvanized… (on request)
• Production standard: DIN 3570 A
• Supply quantity: Always available in large quantities of all sizes, can be supplied immediately to customers (wholesale; retail, project); production on request.
• International delivery

Conversion table of pipe diameter sizes DN (mm) and Phi Ǿ (mm):

Types of U bolts manufactured by Nam An:

1.    Electroplated steel U bolts

Technical specifications:

• Pipe size (mm): Phi 21, 27, 34, 42, 48, 60, 76, 90, 114, 140, 169, 200, 220, 270, 325, 370, 430, 530
• Pipe size (mm): DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 175, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500
• Thread diameter d (mm): M6, M8, M10, M12, M16, M18, M20, M22, M24
• Material: Steel
• Surface treatment: Electroplated zinc (blue white; rainbow yellow)

2. Plastic coated U bolts

Plastic coated U bolts are an upgraded version of the traditional U-bolts, coated with effective protective PVC plastic. This coating provides corrosion resistance, surface protection and electrical insulation, ideal for applications requiring high durability.

Specifications:

• Pipe size (mm): Phi 21, 27, 34, 42, 48, 60, 76, 90, 114, 140, 169, 200, 220, 270, 325, 370, 430, 530
• Pipe size (mm): DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 175, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500
• Thread diameter d (mm): M6, M8, M10, M12, M16, M18, M20, M22, M24
• Material: Normal strength steel, 8.8, stainless steel 201, stainless steel 304
• Surface treatment: Electro galvanized or hot-dip galvanized with plastic-coated bolt body

3. Hot-dip galvanized U-bolts

Hot-dip galvanized U-bolts are U-bolts that are coated with a layer of zinc using the hot-dip method. This process involves dipping the U bolt into a bath of molten zinc, creating a strong and even zinc coating on the surface of the U bolt to help resist corrosive agents.

Specifications:

• Pipe size (mm): Phi 21, 27, 34, 42, 48, 60, 76, 90, 114, 140, 169, 200, 220, 270, 325, 370, 430, 530
• Pipe size (mm): DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 175, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500
• Thread diameter d (mm): M6, M8, M10, M12, M16, M18, M20, M22, M24
• Materials: Normal strength steel; 8.8
• Surface treatment: Hot dip galvanized
• Standards: ASTM A153, BS EN ISO 1461
• Zinc coating thickness: 50-70 microns
• Tensile capacity: Depends on the size and diameter of U-bolts, from 1,000 N to 20,000 N
• Accessories included: Nuts, washers, bolts
• Working temperature: -50°C to 150°C

4. Stainless steel U bolt 201/304/316

Specifications:

• Pipe size (mm): Phi 21, 27, 34, 42, 48, 60, 76, 90, 114, 140, 169, 200, 220, 270, 325, 370, 430, 530
• Pipe size (mm): DN 15, DN 20, DN 25, DN 32, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 175, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500
• Thread diameter d (mm): M6, M8, M10, M12, M16, M18, M20, M22, M24
• Material: Stainless Steel 201/304/316

CONTACT INFO:

NAM AN INDUSTRIAL MATERIAL COMPANY LIMITED

Warehouse/Office address: No. 68, Van Canh Service Land, Hoai Duc District, Ha Noi City, Viet Nam.

Factory address: National Highway 5, Quy Duong, Tan Truong Commune, Cam Giang District, Hai Duong, Vietnam.

Hotline/Zalo: 0941 636 369 – 0983 344 163 – 0983 506 389

Email: Bulongocvitnaman@gmail.com

Website: https://en.bulongnaman.vn/

Youtube Channel: https://www.youtube.com/channel/UCVF6aCJCm1IiZABqXE2_KMw