DIN 3570 U-Bolts
DIN 3570 U Bolts are U-shaped fastening components designed primarily for securing pipes, tubes, and other cylindrical components to supporting structures. The curved section of the U bolt wraps around the pipe, while the two threaded ends extend through a mounting plate, bracket, or support channel and are tightened with nuts and washers. This design provides a simple and reliable method for positioning and restraining piping systems while allowing convenient installation and maintenance.
Manufactured to the dimensional requirements of DIN 3570, our U bolts are available in a range of pipe sizes and metric thread dimensions for plumbing, HVAC, industrial piping, construction, and equipment support applications. We offer carbon steel and stainless steel options, including SS304 and SS316, with plain, zinc-plated, hot-dip galvanized, and other surface finishes. In addition to standard DIN 3570 sizes, custom U bolts can be manufactured with specific pipe diameters, thread lengths, inside widths, heights, materials, and coatings according to technical drawings or application requirements.
Specification:
DIN 3570 U Bolts are manufactured to the dimensional requirements of DIN 3570 and are designed primarily for pipe and tube support applications. Key specifications include thread diameter, pipe size, inside width, thread length, bolt height, and shank dimensions. Depending on the service environment and performance requirements, U bolts can be supplied in carbon steel or stainless steel, with different surface finishes and customized dimensions available.
For corrosion-resistant applications, SS304 U-Bolts are a suitable choice for general outdoor, plumbing, HVAC, and industrial environments, while SS316 U-Bolts provide improved resistance to chlorides, moisture, and aggressive environments and are often selected for marine, coastal, chemical, and wastewater applications. Both stainless steel options can be manufactured in standard or custom dimensions according to drawings and project requirements.
| Item | Specification |
|---|---|
| Standard | DIN 3570 |
| Product Type | U-Bolts |
| Application | Pipe and Tube Support |
| Thread Size | M6-M24 |
| Thead Type | Metric Coarse |
| Thread Standard | ISO261, ISO965 |
| Pipe Size | φ30-φ530 |
| Material | Carbon Steel,Alloy Steel,Stainless Steel |
| Steel Property Class | ISO898-1 Class4.8,8.8,10.9 |
| Stainless Steel Property Class | ISO3506-1 A2-50/70, A4-50/80 |
| Surface Treatment | Zinc Plated,Hot Dip Galvanized,Bright Finish,Passivation |
| Hdg Standard | ISO10684 |
| Customization | Custom Pipe Diameter,Thread length,Width,Height,Material and Finish |
| Inspection | Dimensions, Thread,Mechanical Property,Coating |
Dimension Chart of DIN 3570 U-Bolts:
| Mon | Φ30 | Φ38 | Φ46 | Φ52 | Φ64 | Φ82 | Φ94 | Φ120 | Φ148 | Φ176 | Φ202 | Φ228 | Φ282 | Φ332 | Φ378 | Φ428 | Φ530 |
| ds | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 16 | 16 | 16 | 16 | 20 | 20 | 20 | 24 | 24 | 24 |
| d1 | M10 | M10 | M10 | M10 | M12 | M12 | M12 | M16 | M16 | M16 | M16 | M20 | M20 | M20 | M24 | M24 | M24 |
| h | 70 | 76 | 86 | 92 | 109 | 125 | 138 | 171 | 191 | 217 | 249 | 283 | 334 | 385 | 435 | 487 | 589 |
| P | 1.5 | 1.5 | 1.5 | 1.5 | 1.75 | 1.75 | 1.75 | 2 | 2 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 |
| n | 40 | 48 | 56 | 62 | 76 | 94 | 106 | 136 | 164 | 192 | 218 | 248 | 302 | 352 | 402 | 452 | 554 |
- RELATED BOLTS LISTS:
- U-BOLTS
- ASME B 18.31.5 U-BOLTS
- STUD BOLTS
- DIN976 STUD BOLTS
- DIN939 STUD BOLTS
- IFI 136 STUD BOLTS
- THREADED RODS
- DIN975 THREADED RODS
- ASME B 18.31.3 THREADED RODS
- FOUNDATION ANCHOR BOLTS
- DIN 529 ANCHOR BOTLS
- JIS 1178 L ANCHOR BOLTS
- JIS 1178 J ANCHOR BOLTS
- ASME B 18.31.5 J BOLTS
- ASME B 18.31.5 HOOK BOLTS
Application of DIN 3570 U-Bolts:
DIN 3570 U Bolts are widely used for fastening and supporting pipes, tubes, and cylindrical components to steel structures, brackets, support channels, and other mounting systems. Their U-shaped design allows the bolt to surround the pipe while the threaded ends are secured with nuts, providing a simple and adjustable method for positioning and restraining piping systems. Depending on the material and surface finish, DIN 3570 U bolts can be used in general construction as well as demanding industrial and outdoor environments.
Pipe Support & Piping Systems
DIN 3570 U Bolts are commonly used to support and secure pipes in plumbing, water supply, drainage, compressed air, and industrial piping systems. They can be installed with support plates, channels, brackets, or other structural members to help maintain pipe alignment and prevent unwanted movement. Different pipe diameters and thread sizes are available to accommodate various piping requirements.
HVAC, Mechanical & Industrial Equipment
U bolts are also used in HVAC installations and mechanical systems for securing ducts, pipes, tubes, conduits, and equipment components. They are suitable for industrial facilities, workshops, processing plants, and equipment support structures where reliable pipe restraint and straightforward installation are required. Custom dimensions can be supplied for applications requiring specific pipe diameters, inside widths, heights, or thread lengths.
Construction, Outdoor & Corrosive Environments
DIN 3570 U Bolts can be used in building services, steel structures, infrastructure, and outdoor pipe support systems. Carbon steel U bolts with zinc-plated or hot-dip galvanized finishes are suitable for many general and outdoor applications, while stainless steel options provide improved corrosion resistance. SS304 U Bolts are suitable for general outdoor and industrial environments, while SS316 U Bolts are a preferred option for coastal, marine, chemical, wastewater, and other chloride-containing or aggressive environments.