long m4 screw must open mould? Shi Shi Tong

For the screw manufacturers, they have not done the screw, and there is no mold is to open the mold. Then the long m4 screw is the same, do we need to open the mold?

Does the screw need to be opened in the mold with the size, shape, and whether the factory has made similar screws. Therefore, whether long m4 screw needs to be mould-opened depends on the length of the screw, diameter of rod, diameter of head, shape of head and length of thread.

For Shi Shi Tong screw manufacturers, even if the production of a lot of length of long screws, also dare not say that the production of M4 long screws do not need to open mold. Since different customers have different requirements on the length and size of screws, it depends on the length of the customer whether we need to open a mold. If we have done something similar, we do not need to open a mold. If not, then we need to open a mold.

But there is a case, long m4 screw is must open mold. That is, the customer requires the logo or words to be printed on the head of the screw, which needs to be produced by separate mold making.

Skype: kalyn qin M: +86 18124507113 Tel: +86 0755-85296744 annie@szsst88.com Add: No. 11, Dinghou Road, Dongfang Community, Songgang Street, Baoan District, Shenzhen, Guangdong, China