## Common ground
All options are cable clamps, used to secure and organize cables.
## Options at a glance
**3926.90 – Plastic material**
- **Defining trait:** Made from plastic, offering insulation and lightweight use.
- **Typical examples:** Nylon tie-down clamps, plastic strain relief clips.
- **Best fit when:** Cables need non-conductive, corrosion-resistant, or low-cost mounting.
**7308.90 – Iron or steel**
- **Defining trait:** Made from ferrous metal, providing high strength and durability.
- **Typical examples:** Heavy-duty steel cable ties, industrial clamp brackets.
- **Best fit when:** High mechanical load, outdoor exposure, or long-term structural support is needed.
**7616.99 – Aluminium**
- **Defining trait:** Made from lightweight, corrosion-resistant aluminum alloy.
- **Typical examples:** Aerospace cable clamps, marine-grade mounting clips.
- **Best fit when:** Weight reduction and resistance to rust are critical, e.g., in vehicles or marine environments.
## Key differences
| Feature | 3926.90 (Plastic) | 7308.90 (Steel) | 7616.99 (Aluminium) |
|------------------|-------------------|-----------------|---------------------|
| Material strength | Low | Very high | Medium-high |
| Weight | Light | Heavy | Light |
| Corrosion resistance | Good | Poor (rusts) | Excellent |
| Electrical insulation | Yes | No | No |
## How to choose
- Is the clamp used in a high-stress or outdoor environment? → 7308.90
- Does it need to be non-conductive or lightweight for indoor use? → 3926.90
- Is corrosion resistance and low weight critical (e.g., in vehicles or boats)? → 7616.99
## Overlaps & pitfalls
A clamp may combine materials (e.g., aluminum body with plastic insert), but the primary material determines classification. If unsure, prioritize the main structural material. No option is inherently superior—choice depends on application