Grade 8.8 Class 12.9 Galvanized Carbon Steel U-Shape Bolt with Nut Washer (M18, M20)
Product Description
U-shape bolts are commonly used in cargo vehicles to stabilize chassis and frame components, such as connecting steel plate springs. These versatile fasteners find applications in:
- Construction and installation projects
- Mechanical parts connection
- Vehicle, ship, bridge, tunnel, and railway applications
Available in various shapes including semi-circular, square right angle, triangle, and oblique triangle configurations.
Material Properties: Density, bending strength, impact toughness, compression strength, modulus of elasticity, tensile strength, temperature resistance, and color can be customized based on environmental requirements.
Common Materials: Carbon steel (Q235A, Q345B), alloy steel, and stainless steel (201, 304, 321, 304L, 316, 316L).
Standard: JB/ZQ4321-2006 (National standard for U-bolts).
Applications
U-bolt heat tightening is essential for applications with internal temperature requirements exceeding 200°C, particularly in equipment and pipelines where thermal expansion affects bolt performance.
With growing environmental awareness, the U-bolt industry focuses on sustainable practices, including:
- Using eco-friendly materials and production processes
- Reducing energy consumption and emissions
- Developing innovative materials for improved performance
These fasteners serve critical roles in both traditional sectors (construction, machinery, automotive) and emerging fields (aerospace, renewable energy).
Zinc Plating Advantages
Zinc plating provides excellent corrosion resistance through:
- Anodic protection for steel substrates
- Enhanced durability in various environments
- Improved aesthetics after passivation treatment
Electro-zinc plating deposits a uniform, protective coating ideal for fasteners and automotive components.
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