Nelikantaruuvit

Nelikantaruuvit, also known as four-wing screws or quad-wing screws, are a type of fastener designed for easy hand installation and removal without the need for tools. They feature a distinctive head with four protruding "wings" or lobes that can be gripped by fingers. This design facilitates quick assembly and disassembly, making them ideal for applications where frequent adjustments or maintenance are required.

The primary advantage of nelikantaruuvit lies in their tool-less operation. The expanded surface area of the head allows for a secure grip, even with greasy or gloved hands. This makes them particularly useful in environments where traditional tools might be cumbersome or unavailable. They are often used in consumer electronics, furniture, enclosures, and various assembly lines where speed and ease of use are prioritized.

While they offer convenience, nelikantaruuvit generally provide less torque and security compared to screws that require a tool for tightening. They are not typically recommended for structural applications or where high clamping forces are necessary. The material of nelikantaruuvit can vary, including plastics like nylon or ABS, as well as metals such as brass or stainless steel, depending on the specific application's strength and environmental requirements. The threading on these screws is usually standard machine thread, allowing them to mate with nuts or tapped holes.