Cross-head self-tapping screw with triangular teeth is a common type of triangular screws, which is more beautiful than flat-head screws installed on the surface of products. The head of the screw has a cross concave shape for screwdriver to tighten and loosen.
M4, m6, m8, m10, m12 are commonly used for pan head cross triangle screws according to thread size specifications, and 6, 8, 10, 12, 16, 20mm in length are common.
Compared with ordinary teeth screws, triangular teeth can reduce the resistance in the locking process. It attacks the machined part by three points, and there will be a thermal effect in the locking process, which will prevent the screws from moving after cooling. Mechanical teeth in Yashanjiao are generally 60 degrees, with high thread strength, low locking force and easy production. There are also 55-degree teeth and Wechsler teeth. Threads are divided into locking, transmission and sealing functions, such as square threads and ladder threads, which are generally transmission functions. The difference between triangle and square is the difference between triangular teeth. It is explained in mechanics and geometry that triangle is more stable than quadrilateral.