staple
Sign in to saveAlso known as insulated staple
connecting element for fixing flat items (paper, fabric, foil etc.) to each other or to another item
~11 min read
Encyclopedic overview
A staple (from which the paper fastener was developed)
A staple is a type of two-pronged fastener, usually metal, used for joining, gathering, or binding materials together. Large staples might be used with a hammer or staple gun for masonry, roofing, corrugated boxes and other heavy-duty uses. Smaller staples are used with a stapler to attach pieces of paper together; such staples are a more permanent and durable fastener for paper documents than the paper clip.
Excerpted from Wikipedia’s “staple” article, available under the CC BY-SA 4.0 licence.