The difference between a slotted counter screw 80 dree and 90 degree

Update:29-12-2018
Summary:

In the countersunk screw, some people use the word slot […]

In the countersunk screw, some people use the word slot. Some people like it. Some people like it. It is convenient for him to use. The person who doesn't like it thinks that this type of groove is not what he likes. He doesn't want it. Or he thinks that the word slot is easily destroyed. So what is the difference between a slotted counter screw 80° and 90°?

1. One obvious difference is the difference in angle. One of the slotted countersunk screws is 80° and one is 90°.

2. The diameter of the head is different. At the same thread diameter, different angles can result in different diameters of the head.

3. The thickness of the head is different. At the same thread diameter, different angles can also result in different head thicknesses.

4. Slotted countersunk head screw The same slot width and groove depth are also different under the same specifications.

In the above, the same is the thread diameter of M3, the head diameter of 80° is 5.2 mm-5.5 mm, the head thickness is 1.7 mm, the groove width is 0.8 mm, and the groove depth is 0.5 mm-0.75 mm. In the 90° slotted countersunk head screw, the head diameter is 5.3-5.6 mm, the head thickness is 1.65 mm, the groove width is 0.8 mm, and the groove depth is 0.6 mm-0.85 mm.

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