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Custom carbon steel hardened thin head black zinc plated screw

Custom carbon steel hardened thin head black zinc plated screw Featured Image
  • Custom carbon steel hardened thin head black zinc plated screw
  • Custom carbon steel hardened thin head black zinc plated screw
  • Custom carbon steel hardened thin head black zinc plated screw
  • Custom carbon steel hardened thin head black zinc plated screw
  • Custom carbon steel hardened thin head black zinc plated screw

Custom carbon steel hardened thin head black zinc plated screw

Short Description:

Precision screws are widely used in electronic equipment, household appliances and so on. Precision screws are made of carbon steel (hardened)with coating or stainless steel. We also support anti loosening coating for screws to ensure good fastening function.


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Industry knowledge：

Why is stainless steel screw discolored?

The discoloration of stainless steel is generally caused by the failure to clean the screw during the cleaning process after the screw is hardened. The cleaning solution is still left on the surface of stainless steel screw, so after a period of use, the chemical reaction between the cleaning solution and the material causes the discoloration of stainless steel screw surface.

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