Hole Wizard is used to create this hole. Even though size M6 is selected form the Hole Wizard, hole diameter in the sketch is 5mm. I assume this is because minor diameter of the thread that is supposed to be created. I couldn’t understand this 90°. Is there any relevant between this 90° in the drawing and 118° in sketch? Part file is attached.
Maha,
I see that you are using an educational version, are you a student learning SolidWorks?
The 118 degree in the sketch is for the tap drill, the 90 degree is for when near side countersink is selected (see screenshot); your model is not using this option which is why you do not see it (see other screenshot). The 5mm is not technically the minor diameter, it is the tap drill size. I hope this helps.