Shenzhen Shi Shi Tong Metal Products Co., Ltd

In the  extra long machine screws   we see, the threaded parts seem to be half – thread, and full – threaded ones are rarely seen. Is it because full – threaded screws cannot be made? As a matter of fact, we can make a full thread with the  extra long machine screws . The reason why the full thread is so rare is that it costs more than half thread. If it is a screw with half thread, then the screw can still be rolled out of the screw machine. However, if the screw is full thread and the length of the screw is so long, such as M6*720HM, the screwing machine can’t do it. Because there is no such long tooth plate, the tooth can only be rolled out to make the thread. In addition, if the  extra long machine screws  are full thread, it will take more time and effort to screw it in, because the longer the screw, the greater the resistance and the more difficult it will be to screw. But if it’s a half thread, you can save some time and you won’t have as much resist...

A lot of times, when we need to customize something, we need the buyer to provide a copy of his drawings. With the drawing, we can know what type and effect it wants, because the drawing can objectively express what the customer needs. Even the screw fittings are no exception, so can we make the   extra long machine screws  without drawing? If there is no drawing for  extra long machine screws , we need the customer to provide us with the sample. If there is no sample, the customer needs to provide the desired material, surface treatment, size and other information of each place to the screw manufacturer, and then the screw supplier can make drawings according to the customer’s description and confirm with the customer whether the screws in the drawings are what the customer requires. Screw fittings are not the same as things like clothes. If you’re not sure what kind of clothes you need, you can also ask someone to recommend the right clothes for you or design the c...