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You've probably noticed it before, but never really paid attention... This small round hole at the base of the safety pin seems insignificant, but it plays an essential role.
This ingenious detail allows the pin to operate safely, smoothly and reliably.
And that's not all: when used properly, the safety pin has other very useful functions. Here's a complete overview of what you need to know.
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Summary
1. Why is there a hole in a safety pin?
If you look closely at a safety pin, you will notice a small metal ring at its base.
Many people don't realize this, but the hole in a safety pin isn't decorative. It's actually a central part of its working mechanism .
This hole allows the wire to be wound precisely to create constant tension . This is what makes the opening smooth and the closing firm, without the risk of it accidentally coming loose.
2. The mechanical and safety role of the hole
a. A well-hidden spring
Inside the pin, the metal rod is spiraled through the hole. This creates a spring effect, similar to that found in some click pens or metal clips.
Example: If you've ever used a pin that no longer closes properly, it may be because the spring is bent or the hole is deformed.
b. A natural security lock
When you close the pin, the point snaps into place under tension. The hole maintains this pressure. As a result, the pin won't open on its own, even if you shake it. This is why it's safe to use on clothing, cloth diapers, and even in certain emergency situations.
3. Practical tips with a safety pin
a. Replace a broken zipper
Are you about to go out and your jacket zipper just snapped? Attach a safety pin to the zipper. It will act as a temporary handle. Discreet, quick, and practical.
b. Reinserting a drawstring into pants
Who hasn't lost the drawstring of a hoodie or gym shorts in the closet? Clip a pin to one end of the drawstring and slide it through the tunnel. The rigid metal helps guide it easily.
c. Keeping a bandage in place
In the absence of adhesive tape or bandages, a safety pin can hold a compress on a wound, provided it is well cleaned and does not press directly on the skin.
d. Act as a textile marker
When sorting laundry, you can attach a small pin to the inside of the clothes to identify who they belong to. Useful for large families or in retirement homes.
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4. Use in sewing and DIY
a. Temporary support before sewing
When adjusting a hem or wanting to position fabric pieces before sewing, a safety pin can serve as a quick alternative to traditional pins, especially for thick fabrics.
b. Create a DIY brooch
With a little creativity, a safety pin can be transformed into a handmade brooch holder: a few beads, some colored thread, and you're done. Perfect for customizing a jacket or bag.
5. Frequently asked questions about the hole in a safety pin
a. Can you use a rusty pin?
No. A rusty pin can damage fabrics, irritate skin, and break more easily. Replace it immediately.
b. Do all pins have this hole?
Classic metal models, yes. Plastic or very small models may not have it, but their strength is less.
c. Is it dangerous for children?
Like any small, sharp object, yes. Use only under adult supervision and keep away from young children.
6. Maintenance and safety tips
- Always keep your pins closed when not in use.
- Store them in a dedicated box to avoid accidents.
- Clean them if they have been used in medical or wet settings.
- Never use them as body piercing objects (risk of infection).
The hole in a safety pin is therefore much more than a simple manufacturing detail.
It is the heart of the mechanism, guaranteeing tension, safety and durability .
By knowing its role and mastering these simple tips, you will be able to get the most out of this essential accessory for the home, DIY and sewing.
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