Why do the sizes of flat countersunk head cap screw need to be modified in this way?

Today, Shi Shi Tong screw manufacturer received a drawing of a flat countersunk head cap screw. The head diameter, head thickness, and head angle of the countersunk head screw are all marked on the drawing.

In normal production, it is actually not recommended to mark the dimensions of these three places. Because in production, there will be some differences between the theoretical size and the actual production size. Therefore, Shi Shi Tong screw manufacturer recommends that customers choose two of the sizes. We control the sizes of these two parts, and the remaining sizes are naturally formed according to actual production.

This will be more convenient during production, and there is no need to repeatedly confirm with the customer which two sizes need to be controlled. Of course, this is a cold heading method.

If you want to produce all the dimensions of these three parts according to the drawings, then it is also possible. However, this will increase the cost of the flat countersunk head cap screw, and the size of the countersunk head screws needs to be controlled by turning. Therefore, Shi Shi Tong screw manufacturers generally recommend that customers choose a well-controlled countersunk head screw head size, otherwise the cost will increase a lot.

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