Why does the long thread forming screws not recommend such a long thread?

When we went to the barbershop and told the barber to cut a certain hairstyle, the barber would tell us that this hairstyle is not suitable for you according to our characteristics, face, etc. More beautiful. Professional people will give us better advice in the professional direction. So, why does the screw manufacturer suggest that the customer’s long thread forming screws does not make such a long thread?

A customer in Australia once ordered a long thread forming screws from the Shi Shi Tong screw manufacturer, which is M4*80. The end of the screw is a thread forming mainly for better screwing in during assembly. At that time, the customer said that the screw was fully threaded, and then the Shi Shi Tong screw manufacturer suggested that the customer replace it with a half-thread, so that the resistance would not be so great when screwing, it would not be so laborious, and the cost of production would also be reduced. At that time, the customer did not listen to the advice of the Shi Shi Tong screw manufacturer, saying that he must be fully threaded.

Some time ago, this customer once again found the Shi Shi Tong screw manufacturer, saying that the long thread forming screws should be ordered again, but this time the thread part should be replaced with a half thread. The customer said in the mail that their design was full-threaded at the time. As a result, it took a lot of time to assemble, and it took a long time to screw in, greatly affecting their productivity.

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