ruuvasi

Ruuvisi is a Finnish term that translates to "screw" in English. It is a common fastener used in various applications, from construction and woodworking to electronics and machinery. Screws are characterized by a helical ridge, known as a thread, that engages with a corresponding internal thread in a hole or with a nut. This threading allows the screw to convert rotational motion into linear motion, enabling it to fasten objects together tightly.

There are many different types of ruuvit, distinguished by their head shape, thread type, and material. Common head types include flat head, round head, pan head, and hex head, each suited for different applications and requiring specific tools for installation. Thread types vary in pitch and form, such as coarse thread, fine thread, and self-tapping threads, which are designed to cut their own threads into materials like plastic or metal. Materials used for ruuvit range from common steel and stainless steel to brass and specialized alloys, chosen based on strength, corrosion resistance, and cost requirements. The use of ruuvit is fundamental in assembly and construction, providing a secure and often removable method of joining components.