If you mean the small hole near the tip of a sewing pin, it’s not just decorative. It has a few possible uses depending on the type of pin:
- For holding or attaching thread (in some pin designs): Some specialty pins have holes that allow thread to be looped through, making them easier to attach to fabric or use in certain crafts.
- For manufacturing: On many ordinary straight pins, small holes or openings can be part of how the pin is made or handled during production.
- For identification or design: Some pins have holes in the head or shaft simply as part of the design.
If you mean a different “pin” (such as a safety pin, push pin, bobby pin, or a pin on a device), tell me which one and I can explain that specific hole.
