Can long black screws be made？

Finishing is as important to screws as clothing is to people. If the screw is surface treated, not only the surface is more beautiful, but also the anti-rust performance will be better. Then when the length of the screw is 2000mm, can the long black screws be made?

Because the length of the long black screws is too long compared with the usual screws. Just as a 3-year-old is taller than an 18-year-old, so is the difference. Like this long screw, also do surface treatment, can not do, or can only do some kind of surface treatment.

In fact, long black screws like this can be made if you want to do the surface treatment. Some electroplating plants can not be so long size of the surface treatment, but some electroplating plants can do. But you can do it in a different way. Some of the way through hanging plating to make this surface treatment, this way to make the surface treatment, the surface will be more uniform, time and cost will be more. Some electroplating factory is not through the way of hanging plating to complete, can be with ordinary screw together by rolling plating to complete electroplating.

If the size of the long black screws is too small and too long, we need to consider whether the rolling plating will lead to bending of the screw, whether there is a way to straighten it after bending, and what is the cost? Compared with the cost of hanging plating, which is more cost-effective.