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Carbon steel thin head black zinc plated m1 m2 m3 m4 m5 machine screw

Carbon steel thin head black zinc plated m1 m2 m3 m4 m5 machine 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:

 

How Were Screws Used in Ancient Times

 

One of the initial uses of the screw principle was the extraction of juice from grapes and oil from olives. The screw was then developed to be used in devices for raising water for land irrigation and removing water from ships. Screws were also adapted for use in paper and printing presses.

Though screws have always been useful, it would take centuries before the use of screws became widespread. This delay in extensive use was due to the difficulty of making these tools.

When the first successful screw-cutting lathe was made, long screws could be cut from others. This allowed for correctly sized screws to be mass-produced and for precision screws to be used in the building of steam engines. After that time, screws could also be used in the construction of bridges, canals and roads.


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