These fasteners, available at major home improvement retailers, are small, wedge-shaped metal pieces used to join wood at a 45-degree angle. They are commonly employed in picture framing, cabinet construction, and other woodworking projects requiring precise corner joints. For example, when assembling a picture frame, these fasteners are driven into the corners to create a strong and seamless bond.
The utility of this type of fastener stems from its ability to create a clean, nearly invisible joint. This attribute is particularly valued in applications where aesthetics are paramount. Historically, alternatives such as screws or dowels were more prevalent, but these fasteners offer a faster and less obtrusive method of joining mitered corners, streamlining the assembly process and minimizing visible hardware.