Kierteistettyjä

Kierteistettyjä is a Finnish term that translates to "threaded" in English. It refers to objects that have a helical groove or pattern on their surface. This threading is typically used to create a mechanical fastener, allowing two objects to be joined or secured together by screwing one into the other. Screws, bolts, and nuts are common examples of kierteistettyjä objects. The pattern of the threads, including their size, pitch (distance between threads), and shape, is crucial for their function and compatibility. Different types of threading exist for various applications, such as metric, imperial, and specialized industrial threads. Beyond fasteners, the term can also be used to describe other items with a spiral or helical pattern, such as certain types of ropes, drill bits, or even the rifling inside a gun barrel, which imparts spin to a projectile. The manufacturing process for creating kierteistettyjä surfaces often involves specialized machinery like lathes or threading machines.