Main geometric parameters of self-tapping and self-drilling threads: (1) Large diameter/tooth outer diameter (d1), which is the diameter of the imaginary cylinder where the thread crests coincide. The large diameter of t...
A thread is a shape having a uniform spiral protrusion on a section of the outer or inner surface of the solid. According to its structural characteristics and uses, it can be divided into three categories: 1.Ordinary th...
According to the purpose, the thread can be divided into two types: joint thread and drive thread. In the cross-sectional view, the inner and outer threaded joints are drawn by external threads, and the rest are still re...
1. Strength Strength refers to the resistance of metal materials to damage (excessive plastic deformation or fracture) under static load. Since the action mode of the load is tensile, compression, bending, shearing, etc....
The properties of metal materials are generally divided into two categories: process performance and performance. The so-called process performance refers to the performance of metal materials under the specified cold an...
Inch uniform thread is widely used in inch countries. This type of thread is divided into three series: coarse tooth series UNC, fine tooth series UNF, extra fine tooth series UNFF, plus a fixed pitch series UN. Labeling...
