The special screws of the screws factory is that the model and size of some national standard screws are different, resulting in special screws. Become a non-standard screws. For example, the national standard head size of some screws is 8, while the special screws may be 7, or even 10. Therefore, the length dimension, tolerance range, material grade strength, etc. of all aspects of the national standard screws, if it does not meet the national standard screws length dimension. It will lead to a special screws.





Special screws are generally not readily available. That is to say, the general screws manufacturer will not have stock. This special screws needs to be customized. Customers need to provide screws drawings or screws samples before production and processing. The customer provides the screws drawings or screws samples, and our manufacturer can order the head mold and the tooth plate according to the screws drawings or screws samples. Even if there is no screws material, we have to order the screws wire.

 Under normal circumstances, the unit price of special screws will be relatively high. And if there is no quantity, it is not easy to produce. Because the cost of ordering molds is relatively expensive, some special screws, such as step screws, need 3000-5000 yuan or even more to order a screws mold. Therefore, if there is no quantity, it is difficult to produce.