Ruuviliitin

Ruuviliitin is a type of mechanical fastener that is commonly used for connecting two or more parts or objects. It is a fastening system that utilizes a spiral thread, similar to a helical spring, to create a secure attachment between the connected pieces.

The term "ruuviliitin" is Finnish in origin and translates to "washer connection" or "washer link". This fastening system is often used in industrial and commercial settings, where it provides a reliable and durable method for connecting metal parts. The ruuviliitin consists of a threaded rivet or screw that is encased in a washer-like device, which is inserted between the connected parts.

When the screw or rivet is tightened, the spiral thread of the ruuviliitin expands, creating a secure and stable connection between the parts. This fastening system is particularly useful for applications where high tensile strength and corrosion resistance are required. Additionally, ruuviliitin fasteners can be easily repaired or replaced by removing the existing connections and re-threading the parts.

Ruuviliitin is widely used in various industries, including construction, manufacturing, and engineering. In some countries, it is also known as a "washer screw" or "anchor screw". Despite its widespread use, the term "ruuviliitin" is predominantly used in Nordic countries, particularly in Finland and Norway. However, the mechanical fastening system itself is used globally, with different names and applications. The simplicity and effectiveness of the ruuviliitin have made it a popular choice for a wide range of applications.