The screw is a tool to tighten the machine parts step by step by using the physical and mathematical principles of the oblique circular rotation and friction of the object. Screw is a general term for fasteners, which is spoken daily. Screws are indispensable industrial necessities in daily life: such as minimal screws used in cameras, glasses, clocks and watches, electronics and so on; general sc...

The difference between self-drilling screw, self-drilling screw, self-tapping screw and self-tapping self-drilling screw: First of all, the same products can be divided into two categories: .1. Drilling tail screw = self-drilling screw = self-tapping self-drilling screw < br />.2. Self tapping screw The first kind of screw has its own drill tail, when it is screwed into steel plate and wood, no pr...

Self-drilling self-tapping screw is a new type of high-efficiency riveting fastener; self-drilling self-tapping screw is named self-drilling self-tapping screw because of its tail, also known as self-drilling tail screw, drilling tail screw, drilling tail screw, self-drilling self-tapping screw, self-drilling self-tapping self-drilling tail screw, etc. The implementation standards of self-drilling...

The detection of stainless steel screw has many aspects. For example, check the head of stainless steel screw to see if the head of stainless steel screw will burst. There is also the detection of various dimensions of stainless steel screw. See if it meets national standards or customer requirements. Today, the inspection of stainless steel screw thread is introduced. The measurement of stainless...

The application of hardware screw is ubiquitous in life. I believe that everyone knows the existence of screw, which is one of the hardware products and one of the types of fasteners. As we all know, with the rapid development of China's economy, hardware accessories have become a considerable industry. In fact, the screw and spring of hardware accessories have been well interpreted. Screw springs...