Release time：2020-01-16 18:44 Browse：
### 1. **Strength Grade: Grade 8.8 High-Performance Standards**
- **Material & Heat Treatment**: Crafted from medium-carbon alloy steel (often containing manganese, chromium, or molybdenum) and subjected to precise quenching and tempering. This process ensures it meets Grade 8.8 mechanical specifications, with a minimum tensile strength of 800 MPa and yield strength of 640 MPa—critical for withstanding high loads in new energy systems where reliability is non-negotiable.
- **Application Suitability**: The grade balances strength and ductility, making it ideal for new energy equipment (e.g., battery packs, solar panel mounts, wind turbine components) that experience dynamic stresses from vibration, thermal expansion, or operational loads.
### 2. **Design: Cylindrical Head with Internal Hexagon Drive**
- **Cylindrical Head**: Features a smooth, cylindrical head profile that sits flush or low-profile when installed, reducing interference in tight spaces—essential for compact new energy systems (e.g., electric vehicle battery enclosures or solar inverter assemblies). The head’s uniform diameter also distributes clamping force evenly, preventing damage to delicate components like battery terminals or thin metal brackets.
- **Internal Hexagon Drive**: Equipped with a recessed hexagonal socket (Allen drive) that allows for high torque application with minimal slippage. This design is critical in new energy setups where secure, precise fastening is required to prevent loosening over time—especially in vibration-prone environments like EV engines or wind turbine nacelles.
### 3. **Extended Bolt Structure: Enhanced Reach for Complex Assemblies**
- **Longer Shank Design**: The “extended” designation means the bolt’s unthreaded shank (grip length) and overall length exceed standard sizes, enabling it to fasten through thick or multi-layer components common in new energy systems. For example, it can secure stacked battery modules, connect heavy-duty solar panel frames to support structures, or attach wind turbine gearbox components with deep mounting points.
- **Thread Precision**: The partial or full threading (depending on design) is engineered to meet tight tolerances, ensuring consistent engagement with nuts or tapped holes. This precision prevents cross-threading—a risk that could compromise electrical connections or structural integrity in sensitive new energy equipment.
### 4. **Blackened Finish: Tailored for New Energy Environments**
- **Blackening Process**: Treated with a black oxide or chemical blackening process, forming a thin, adherent Fe₃O₄ layer on the surface. This finish is chosen for new energy applications due to its unique benefits:
- **Corrosion Resistance**: Protects against moisture, humidity, and mild chemicals (e.g., coolants in EVs or cleaning agents in solar farms), extending service life in outdoor or enclosed systems.
- **Non-Reflective Aesthetics**: The matte black appearance reduces light glare in solar installations or battery rooms, avoiding interference with optical sensors or worker visibility.
- **Compatibility with Insulation**: Unlike galvanized finishes, blackening does not create conductive zinc deposits, making it safe for use near electrical components (e.g., battery terminals) where insulation is critical.
### 5. **Specialization for New Energy Applications**
- **Tailored to Industry Needs**: Designed to address unique challenges in new energy sectors:
- **EVs & Battery Storage**: Withstands temperature fluctuations (-40°C to 85°C) in battery packs, resists corrosion from electrolyte leaks, and fits into space-constrained battery casings.
- **Solar & Wind Energy**: Endures outdoor exposure (UV rays, rain, salt spray in coastal wind farms) while maintaining clamping force in structural connections.
- **Compliance**: Meets industry standards for low outgassing (critical in sealed battery enclosures) and non-magnetic properties (to avoid interference with sensors in renewable energy systems).
