How to determine the specifications of the flat head security screw?

Frequently, customers will give the screw diameter and length, material, quantity, and then say that the specifications of this flat head security screw will be produced according to your standards.

The flat head security screw in the flat head has the meaning of the C head in Chinese, and the meaning of the countersunk head. If you just describe it and don’t give a picture, then we can’t determine what the head shape of the screw is. If it is a countersunk head screw, then you need to know if the customer has a requirement for the head angle of the screw. Different head angles, the size of the head is different. If it is a C-headed Phillips screw, the specifications of this screw are not standard. If the head size is too small, it may not be able to tighten.

So if it is a countersunk flat head security screw, you can give the standard number, or tell us what the required countersunk angle is, we will give the size to confirm. If it is a flat head security screw in the C head, the size of the head still needs to be given, or we can give the size range of the head inside the thread diameter and give you a confirmation of which size is required.

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