Metric fastener is a very important engineering material, which has been used in many applications in different fields. Many industries use various types of Metric Fasteners, such as construction, wood processing, mobile and aerospace, and electronic equipment production.
However, in this particular content, I will introduce metric thread forming screws in particular. These are screws used to form material or base material around the hole until they are wrapped around the thread. As opposed to other metric screws, they do not remove any parts from the joint.
How do self tapping screws work?
In layman's terms, screw forming screws force the substrate or material to fit into its thread. The process is similar to self tapping screws (self tapping screws remove debris from the material), but they deform the substrate only by bending the substrate to the mating position without removing any of the joints.
application area
Metals or metallic materials - they can be used in a variety of metal materials, such as plate steel, sheet steel, non-ferrous metals and light metals; they can be used repeatedly (reuse).
Nylon and plastics - made from non-metallic materials, including acetals, polycarbonate, PVC and polypropylene.
Wood or wood material - re also has some types that can be specifically used for wood processing, such as in furniture and construction (e.g. m78007-ka18x5 Pt oval head steel zinc wn1412)
There are many types of materials for making stainless steel screws, and they can be divided into several categories according to the structure at room temperature: austenitic type: such as 304, 321, 316, 310, etc.; martensite or ferrite type: such as 430, 420, 410 Wait; Austenite is non-magnetic or weakly magnetic, while martensite or ferrite is magnetic. Due to component segregation or improper heat treatment during smelting, a small amount of martensite or ferrite in austenitic 304 stainless steel will result. In this way, 304 stainless steel will have weak magnetic properties. After 304 stainless steel is cold worked, the structure will also be transformed into martensite. The greater the degree of cold working deformation, the more martensite transformation and the greater the magnetic properties of the steel. Like a batch of steel belts, Φ76 tubes are produced without obvious magnetic induction, and Φ9.5 tubes are produced. Because the bending deformation...
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