Staple (fastener)

A staple is a type of fastener, usually a thin wire or metal strip, bent into a U-shape and used to join materials together by piercing them and clinching the ends. Staples are typically driven by a staple gun or stapler, which forces the staple through the materials being joined and then bends the ends over to secure them.

Staples are commonly used to fasten paper, cardboard, fabric, and other materials. They come in various sizes and materials, depending on the application. Common materials include steel, stainless steel, and aluminum. Size variations refer to the leg length (the distance from the crown to the point) and wire gauge (thickness).

Staples are a cost-effective and efficient method of fastening, providing a strong and relatively permanent bond. They are widely used in offices, homes, construction, and manufacturing. The term "staple" can also refer to the act of using staples to fasten items together. Removing staples typically requires a staple remover, a tool designed to pry the clinched ends apart and extract the staple from the materials.