(1)Interlocking locking: The U-shaped design of the pipe U bolt can "encircle" the pipe or sheet, providing uniform and stable clamping force.
(2)Installation is convenient: No welding or special equipment is required. Just use simple fastening nuts and washers.
(3)High-strength option available: It can support high-strength specifications of 10.9 and 12.9 grades.
(4)Corrosion-resistant solutions are diverse: from galvanization, hot-dip galvanization to stainless steel materials, meeting the requirements of different environments.
(5)Highly customizable: Dimensions, curvature, material, and surface treatment can all be customized according to the design. OEM/ODM services are supported.
| Mon | Φ60 | Φ76 | Φ83 | Φ89 | Φ102 | Φ108 | Φ114 | Φ133 | Φ140 | Φ159 | Φ165 |
| d1 | M12 | M12 | M12 | M12 | M16 | M16 | M16 | M16 | M16 | M16 | M16 |
| n | 76 | 92 | 98 | 104 | 122 | 128 | 134 | 154 | 160 | 180 | 186 |
| P | 1.75 | 1.75 | 1.75 | 1.75 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| r | 32 | 40 | 43 | 46 | 53 | 56 | 59 | 69 | 72 | 82 | 85 |
Choosing the pipe U bolt essentially involves finding a balance among "performance", "environment" and "cost".
(1)Size: Has the measurement of the outer diameter of the pipe been done correctly? Is the gap between the inner diameter (ID) of the U-bolt and the outer diameter of the pipe within the range of 2-3mm or 0.5-1mm?
(2)Material: Is it suitable for humid and corrosive environments? Is stainless steel or special surface treatment (such as hot-dip galvanizing, Dacromet) required?
(3)Strength: Is the pipeline capable of withstanding a large load? Is there any vibration or shock? Have the performance grades (such as 8.8, 10.9 grades) been selected correctly?
(4)Standard: Does the product comply with international or domestic standards such as JB/ZQ 4321 and DIN 3570?
(5)Installation: Are the nuts tightened symmetrically? Is the tightening torque up to standard? Is it necessary to install anti-loosening washers or pads?
| Application scenario | Recommended material | Recommended surface treatment | Performance level |
| Indoor general environment | Carbon steel (Q235) | Electro-galvanizing | 4.8 / 6.8 |
| Outdoor dampness/rainwater | Carbon steel (45#) | Hot-dip galvanizing | 8.8 |
| Strong vibration / heavy load (such as automobiles) | Alloy steel (40Cr/42CrMo) | Dacromet / blackening | 10.9 / 12.9 |
| Highly corrosive (marine/chemical) | Stainless steel 304/316L | Original color / Passivation | A2-70 / A4-80 |
| Electrical / Explosion-proof | Brass / Aluminum alloy | Original color / Nickel plating | — |
(1)Which material of pipe U bolts should be chosen for use in outdoor/sea areas/chemical plants?
For indoor or dry environments, carbon steel U-bolts treated with electro-galvanizing or blackening offer the best cost-effectiveness.
For outdoor environments that are damp or have mild corrosion, carbon steel treated with hot-dip galvanizing is the standard choice.
If you are in a highly corrosive environment such as near the coast or in a chemical plant, we highly recommend stainless steel U-bolts (such as 304 or 316L).
(2)We can provide the drawings. Could you manufacture them according to our drawings?
Absolutely. We accept OEM custom orders. You just need to provide the drawings (in PDF or DWG format) or samples, and we can carry out the customized production.
(3)Could we first take some samples for testing?
Sure. We support the provision of samples.
The specific policy is as follows: For standard products in stock, we can provide free samples, but you may need to bear the international shipping costs.
For custom samples that require mold production, we will charge reasonable mold fees and sample fees; after a certain number of formal orders are placed, these fees can be refunded.
(4)How do you usually package? Can it be packaged according to my requirements? Where is your port located?
Sure, our packaging options are very flexible. The standard packaging is 25kg/each in woven bags or cardboard boxes, with palletized export, which is convenient for forklift loading and transportation in containers.
We also support customized packaging. You can provide brand-specific individual packaging boxes or outer boxes.
We usually ship from Tianjin Port.