Triangular screws belong to a special category of self tapping screws. Triangular screw, also known as triangular self tapping locking screw or triangular self-locking screw, is characterized by a triangular thread with a pointed tail end, and does not require the use of a nut.
The thread of a triangular screw has three prisms, which appear triangular when viewed from the side. This design can reduce resistance during the locking process and create a thermal effect by tapping the workpiece at three points. After cooling, it prevents the screw from shifting.
Triangular screws exhibit excellent locking performance in applications, especially when screwed into plastic metal materials, forming internal threads in the hole through compression, creating a reliable locking connection.