## Common ground
All options refer to small, pointed fasteners used for holding fabric in place during sewing—commonly known as dressmaker’s pins.
## Options at a glance
**7319.40 – Made of iron or steel**
- **Defining trait:** Constructed from ferrous metal, typically with rust-resistant coating; most common type due to strength and low cost.
- **Typical examples:** Standard sewing pins, straight pins with plastic heads, dressmaker’s pins.
- **Best fit when:** Need durability, affordability, and widespread availability for general sewing tasks.
**7419 – Made of copper**
- **Defining trait:** Crafted from non-ferrous metal; less common, often used for decorative or specialized purposes due to appearance and corrosion resistance.
- **Typical examples:** Decorative pins, vintage-style pins, artistic textile fasteners.
- **Best fit when:** Aesthetic appeal, non-magnetic properties, or special design are priorities over function.
## Key differences
| Feature | 7319.40 (Iron/Steel) | 7419 (Copper) |
|------------------|------------------------|----------------------|
| Material | Ferrous (iron/steel) | Non-ferrous (copper) |
| Common use | General sewing | Decorative/artistic |
| Magnetic? | Yes | No |
| Cost & availability | High (low cost) | Lower (specialty) |
## How to choose
- Is the pin primarily for everyday sewing or general use? → 7319.40
- Does it have a decorative, artistic, or non-magnetic purpose? → 7419
## Overlaps & pitfalls
A pin may be made of copper but still serve as a standard sewing pin (e.g., copper-coated steel), blurring the line. However, if the material is clearly specified as pure copper, it falls under 7419. The key is whether the **primary material** is iron/steel or copper. If unsure, prioritize the **main function**: functional sewing → 7319.40; decorative use → 7419