What is the difference between cross recessed countersunk head screw and other screws?

Understand a little bit of the basic people know about the screw, the type of screw is a lot of, such as pan head six lobe screw, truss head phillips screw, shoulder screw, long screw, small screw, and so on. So, what’s the difference between a cross recessed countersunk head screw and any other screw?

cross recessed countersunk head screw differ from other screws in their length measurements. Like M2*16, M2 is the diameter of the thread, 16 is the length of the screw. When measuring the length of the pan head torx screw, it does not include the head, but just the length below the head.

cross recessed countersunk head screw measure the length of the screw with the length of the head. Therefore, if we are not familiar with the measurement of countersunk head screw, we may buy the wrong screw when we buy the screw, so that the screw we bought cannot be assembled.

And in the screw size, countersunk head screws do not have to be the same as other screws, to know the head diameter and thickness, generally know the head Angle and diameter is ok.

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