## Common ground
All options are types of push pins, small fasteners used to attach paper or lightweight materials to a surface.
## Options at a glance
**7319.40 – Made of iron or steel**
- **Defining trait:** Constructed from ferromagnetic metal, typically with a rust-resistant coating.
- **Typical examples:** Standard office push pins, metal-backed thumbtacks.
- **Best fit when:** Durability and holding strength are key; common in offices or for long-term use.
**7419 – Made of copper**
- **Defining trait:** Crafted from non-ferrous, corrosion-resistant copper, often used for decorative or specialized purposes.
- **Typical examples:** Artistic push pins, vintage-style office accessories, display pins in craft projects.
- **Best fit when:** Aesthetic appeal, non-magnetic properties, or resistance to tarnish are important.
## Key differences
| Feature | 7319.40 (Iron/Steel) | 7419 (Copper) |
|------------------|------------------------|----------------------|
| Material | Iron or steel | Copper |
| Magnetic? | Yes | No |
| Corrosion resistance | Low (unless coated) | High |
| Common use | General office use | Decorative, craft |
## How to choose
- Is the pin primarily for everyday office use? → 7319.40
- Does it need to be non-magnetic or visually distinctive? → 7419
## Overlaps & pitfalls
A push pin could technically be both copper and magnetic if alloyed, but pure copper is not magnetic. The main overlap is in function—both serve as fasteners—but the material defines the category. If the product is visibly copper-colored and used decoratively, choose 7419. If it’s standard metal with a coated head, choose 7319.40. No priority rule is implied; use the dominant material or intended function to decide