Nowadays, metal screws are widely used in life. There is steel carbon material and stainless steel material. What we need to know today is plastic screws.
The raw material of plastic screw is plastic, domestic commonly used plastic screw is made for nylon 66 place more, so plastic screw also calls nylon screws.
Since the 1970s, plastic products have been used by the industrial industry, and plastic products have become an indispensable part of the petrochemical industry.Although plastic screws are made of plastic and most metal screws are made of carbon steel, they also have the same features, with different grooves and heads.The difference is that metal screws for thread standards are relatively strict plastic screws.But plastic screw also has its own advantages, acid resistance, alkali resistance, fire rating, the biggest advantage is good insulation, not conductive.Because of these advantages, plastic screws are widely used in the medical equipment industry, wind power industry, aerospace industry, petrochemical industry and so on.Have an advantage, drawback also is coexistent of course, the torsion force of plastic screw and intensity are not big, in using a process, torsion force is too big the phenomenon that causes slippery tooth or head fracture.So we use the construction decoration of the wall board nail (dry wall nail) can not use plastic material production, and other general self-tapping screw can use plastic material production.
In the field of plastic screws, we are at the stage of preliminary research .
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