## Common ground
All options describe nail-like hollow bodies made from metallic materials, used as fasteners or structural components.
## Options at a glance
**7317.00 – Iron/steel body**
- **Defining trait:** Made primarily from iron or steel, typically with a hollow shaft and head.
- **Typical examples:** Steel nail with hollow shank for anchoring in wood or drywall.
- **Best fit when:** The product is made of ferrous metal (iron/steel), commonly used in construction.
**7415.10 – Copper head, iron/steel body**
- **Defining trait:** Features a copper head while the body remains iron or steel.
- **Typical examples:** Decorative fastener with copper cap on steel shaft.
- **Best fit when:** The head is visibly copper, even if the body is steel (e.g., for corrosion resistance or aesthetics).
**7415.10 – Copper body**
- **Defining trait:** Entirely made of copper, including both body and head.
- **Typical examples:** Copper nail used in roofing or antique restoration.
- **Best fit when:** The product is fully copper, not just the head.
**7508.90 – Nickel body**
- **Defining trait:** Made entirely of nickel, known for corrosion resistance and durability.
- **Typical examples:** High-end fastener in chemical or marine environments.
- **Best fit when:** The material is nickel, not alloyed with other metals.
**7616.10 – Aluminium body**
- **Defining trait:** Made of lightweight aluminium, often used where weight matters.
- **Typical examples:** Lightweight fastener in aircraft or signage.
- **Best fit when:** The product is light and visibly aluminum (e.g., silver-gray, non-magnetic).
**7907.00 – Zinc body**
- **Defining trait:** Made of zinc, often used for galvanization or sacrificial protection.
- **Typical examples:** Galvanized nail with zinc coating; pure zinc fastener in corrosion-prone areas.
- **Best fit when:** The product is made of zinc metal, not just coated.
## Key differences
| HS Code | Material | Head Material | Weight & Use Case | Corrosion Resistance |
|-------------|----------------|---------------|----------------------------|------------------------|
| 7317.00 | Iron/Steel | Steel | Heavy-duty construction | Low (unless coated) |
| 7415.10 | Iron/Steel | Copper | Decorative, aesthetic | Medium |
| 7415.10 | Copper | Copper | Antique, roofing | High |
| 7508.90 | Nickel | Nickel | Industrial, marine | Very high |
| 7616.10 | Aluminium | Aluminium | Lightweight, aerospace | Medium |
| 7907.00 | Zinc | Zinc | Corrosion protection | High (sacrificial) |
## How to choose
- Is the entire product made of copper? → 7415.10 (copper body)
- Does it have a copper head but steel body? → 7415.10 (copper head, iron/steel body)
- Is it made of nickel? → 7508.90
- Is it aluminum? → 7616.10
- Is it zinc (not just coated)? → 7907.00
- Is it iron or steel with no copper? → 7317.00
## Overlaps & pitfalls
- **Overlap:** The same HS Code (7415.10) appears twice—once for copper head/steel body, once for full copper. This is a duplication; the correct classification depends on material composition, not just head color.
- **Pitfall:** "Copper" in the label may refer to coating or head only. Always verify if the entire body is copper.
- **Priority rule:** Use the **main material** (body) as the defining trait unless otherwise specified