Why is the quantity of step screw manufacturer not so much?

In China, screw factory can also be said to be everywhere. Although the manufacturer that produces screw has a lot of, but on the shoulder screw, the quantity of step screw manufacturer is not so much, this is why?

shoulder screw relative to another standard screw, can be said to belong to a non-standard screw, the production model is not the same, the standard screw is basically the use of single-mode machine production, and the majority of shoulder screw is the use of multi-station machine production, and even some use CNC production. Not many technicians can operate multi-station machines at the same time.

And a lot of customers in the purchase of shoulder screw, not like the standard screw, a purchase is hundreds of thousands or even more. Most people in the purchase of shoulder screws, the number may only be a few thousand, tens of thousands. This quantity is very small for the step screw manufacturer. It can be done, but the labor cost is high.

In addition, shoulder screws are basically required to open the mold, some customers do not want to pay the cost of the mold, more willing to find a mold manufacturers. For a variety of reasons led to the number of step screw manufacturer is not so much.

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