CD pattern screw is also called appearance screw, the material are suitable for processing cd screw is stainless steel 303.304.410,416F and aluminum, other materials effect is not so good; Generally, the plasticity is medium, if the plasticity is too low, there is brittle crack development in the etching, and the plasticity is too high, the adhesive tape effect will occur, just like the surface porch sticky knife, to change the microstructure properties of the material through the heat treatment process, before processing the cd pattern.
Non-standard screws are used in the specification does not belong to the national standard, is a non-standard screw, is a special size, generally used in the application of fewer parts. Many customers choose non-calibration because some machines or household items are used above, and it is different from the ordinary screw processing process. Many non-standard screws can not be directly played out by the screw machine, it has to be processed by lathes, machine tools and other machines, so the processing process will be more than the general screws. Of course, after the non-standard CD thread screw is processed, if you need to increase the coating, you need to carry out PVD treatment.So the
CD pattern screws can be customed!
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.jpg "CD pattern M6~7 Countersunk head cross stainless steel 304 screw")
