selfdrillingtyyppejä
Self-drilling screws, often referred to by the Finnish term "selfdrillingtyyppejä," are a type of fastener designed to drill their own pilot hole and create threads in a material as they are installed. This eliminates the need for a pre-drilled hole, saving time and labor in many construction and assembly applications. The tip of a self-drilling screw typically features a cutting flute, similar to a drill bit, which carves out the material. As the screw advances, the threads engage with the material, creating a secure fastening.
These fasteners are commonly made from hardened steel to withstand the stresses of drilling and threading.