| Material |
Carbon Steel (C1022), Stainless Steel 304/316, Galvanized Steel |
| Surface Treatment |
Hot-Dip Galvanized, Zinc Plated, Polished |
| Dimensions |
Diameter: 1/4"-2" (6mm-50mm); Length: 2"-12" (50mm-300mm) |
| Customization |
Bend Design (Square/Long Tangent), Thread Pitch, End Treatment |
| Standards |
ASTM A325, DIN 7984, ISO 9001 |
| Application |
Structural Fixing, Pipe Clamping, Machinery Mounting |
| MOQ |
20,000 PCS (Negotiable) |
| Origin |
Tianjin, China |
| Delivery Time |
7–28 Days (Sample Available) |
🔩 High-Strength U Bolts
Crafted from Carbon Steel (Grade 8.8/10.9), Stainless Steel 304/316, or Galvanized Steel, with surface treatments including Hot-Dip Galvanized (standard, ≥48-hour salt spray test), Zinc Plated, and Polished for corrosion resistance and durability.
📏 Precision Dimensions
- Diameter: 1/4"–2" (6mm–50mm)
- Length: 2"–12" (50mm–300mm)
Customizable with Square Bend or Long Tangent designs to suit specific installation needs.
🌐 International Certifications
Compliant with ASTM A325 (structural steel), JB/ZQ 4321-1997 (Chinese national standard), and ISO 898-1 (mechanical properties), backed by ISO 9001 quality management system certification.
🏭 Versatile Applications
Ideal for structural fixing, pipe clamping, machinery mounting, and 新能源汽车 (new energy vehicle) component anchoring, serving industries such as construction, manufacturing, chemical engineering, and wind energy.
💼 Reliable Business Terms
- MOQ: 20,000 PCS (negotiable)
- Direct from Tianjin factory, 7–28 days delivery time
- Samples available for quality verification
| Parameter |
Carbon Steel (Grade 8.8) |
Stainless Steel 316 |
| Tensile Strength |
800 MPa |
650 MPa |
| Salt Spray Resistance |
≥48 hours |
≥1,000 hours |
| Operating Temperature |
-20°C to +200°C |
-50°C to +400°C |
Engineered for high-load structural applications and harsh environments, our U Bolts balance precision, durability, and customization to meet global industrial standards.
· Factory direct pricing.
· Professional R&D team.
· Provide professional fastener Manufacturer since 1999.
· Provide 24-hour service
· Quickly delivery, Regular products within 4-7 working days.
· OEM order customization service.
Our company provides OEM service, has a complete fasteners production line, and completely controls the quality of the entire fasteners, which is in our own hands, and can meet the needs of customers from the first step to the last step.
At the same time, we are the original manufacturer, we can provide customized services for customers for free, can control each production procedure, and can also control the price. Now we have global customers and also provide OEM for global fastener companies. If you have potential demand and quantity, please contact us for better price. Since we are a manufacturer, we can offer wholesale prices directly to our customers.
Contact us for more information about fasteners and pricing!
FAQ:
1.Why choose us?
We are specialized in Fasteners for about 22 years,with professional production and export experience, we can provide you with high-quality customer service.
2.What's your main product?
We mainly produce and sell various self tapping screws,self drilling screws,drywall screws,chipboard screws,roofing screws,wood screws,bolts,nuts etc.
3.You are a manufacturing company or trading company?
We are a manufacturing company and have exporting experience for more than 22 years.
4.How long is your delivery time?
It is according to your quantity.Generally,it is about 15-40 days.
5.Do you provide free samples?
Yes, we provide free samples, and the quantity of samples does not exceed 20 pieces.
6.What's your payment terms?
Mostly we use 30% advance payment by T/T, 70% before shipment.
