What is the reason why m4 stainless steel countersunk screws cannot be used?

With the development of the Internet, a variety of products are constantly appearing. However, basically, no matter which product, there will be no use, the same is true for the screw. So what is the reason why m4 stainless steel countersunk screws cannot be used?

There are many reasons why m4 stainless steel countersunk screws cannot be used. We have to analyze them according to the actual problems that appear in the assembled products.

When the diameter of the head of the screw is too large, the screw cannot be completely screwed into the product during assembly. If the height of the head of the screw is too high, then when the corresponding product is assembled, the products cannot be assembled with each other.

When the manufacturer’s groove type is inconsistent with the customer’s screwdriver bit, the customer’s bit will not be able to screw this screw. Or the slot of the screw is blocked, the slot is smashed, etc., and there is a problem in the electric assembly.

Sometimes, the m4 stainless steel countersunk screws can also be screwed in. For this reason, the thread pitch is inconsistent with the hole pitch of the hole, the screw thread diameter is large, the thread wash is broken, and so on.

Therefore, when our screws appear to be unusable, we need to find out the reasons according to the specific situation, to avoid this problem again next time.

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