Ruuvipään

Ruuvipään is a Finnish term that translates to "screw head" or "screw head type." It refers to the specific shape and design of the top part of a screw, which is intended to interface with a corresponding tool for tightening or loosening. The type of ruuvipään dictates the tool required, such as a screwdriver or a bit. Common ruuvipään types include slot (ura), Phillips (ristipää), Torx (kuusiokolo), and hexagonal (kuusiokolo). The choice of ruuvipään is important for efficient and secure fastening, as using the wrong tool can damage the screw head or the material being fastened. Different ruuvipään designs offer varying levels of torque transfer, resistance to cam-out (where the tool slips out of the screw head), and suitability for automated assembly. The standardization of ruuvipään types ensures compatibility between screws and tools across different manufacturers.