## Common ground
All options are snap hooks, which are mechanical fasteners used to connect or secure items.
## Options at a glance
**3926.90 – Plastic snap hook**
- **Defining trait:** Made from plastic, typically lighter and less durable than metal.
- **Typical examples:** Lightweight luggage tags, toy accessories, garden tool holders.
- **Best fit when:** Weight and cost matter more than strength; used in low-stress environments.
**7326.20 – Iron or steel snap hook**
- **Defining trait:** Made from ferrous metal, offering high strength and durability.
- **Typical examples:** Industrial lifting gear, climbing harnesses, heavy-duty tool straps.
- **Best fit when:** High load capacity and resistance to wear are essential.
**7616.99 – Aluminium snap hook**
- **Defining trait:** Made from aluminum, combining light weight with good corrosion resistance.
- **Typical examples:** Outdoor gear, marine equipment, backpack accessories.
- **Best fit when:** Lightweight yet durable performance is needed, especially in humid or salty environments.
## Key differences
| Feature | Plastic (3926.90) | Steel (7326.20) | Aluminum (7616.99) |
|------------------|-------------------|-----------------|--------------------|
| Weight | Light | Heavy | Light |
| Strength | Low | Very high | Medium-high |
| Corrosion resistance | Poor | Moderate (needs coating) | Excellent |
## How to choose
- Is the hook used in heavy-duty or safety-critical applications? → 7326.20
- Does it need to be lightweight and resistant to rust? → 7616.99
- Is cost and low weight the main priority, with minimal load? → 3926.90
## Overlaps & pitfalls
A snap hook may fit more than one category if it’s aluminum (7616.99) but used in heavy loads—still, material defines the HS Code. Plastic hooks can be reinforced, but unless specified, assume standard plastic. The main trait is **material**, so prioritize that over use case when classifying