What are the standards for truss head self tapping screw?

Because the head is a large flat head, the phillips truss head self tapping screw increase the force area and make the head less susceptible to damage. And the truss head self tapping screw also has the characteristics of convenient installation and non-deformation, and has been well received by people in recent years. So, what are the standards for self-tapping screws with large flat heads?

At present, there is no standard number for the self-tapping screws of the cross truss head in the GB GB. The following is the standard of JIS B 1122-1996.

Although there is this table, there are still some customers who are worried because their size exceeds the thread diameter above. They don’t want to spend so much time and effort on setting up multiple samples to repeatedly confirm their size. One point, do it according to the standard. But the standard specifications are not that big. How do they determine the size of the self-tapping screws for the large flat head cross recess?

In this case, you can refer to the size of the truss head self tapping screw, because only the size of the head is not determined if the thread diameter and length are determined, and the size of the screw can be used directly.

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