I am fitting a window blind on a wall.

I have drilled a hole on wall bigger than the screw size.

The drilled hole on the wall has a diameter of 6mm

The screw I try to fit in has a diameter of 3mm

Here is the image of the drilled hole o the wall:

Here is the image of the screw with the window blind holder:

How do I fit the screw tightly and safely on the large drilled hole on wall?

I am fitting a window blind on a wall. The wall is made of plaster board as far as I have known.

I have drilled a hole on wall bigger than the screw size.

The drilled hole on the wall has a diameter of 6mm

The screw I try to fit in has a diameter of 3mm

Here is the image of the drilled hole o the wall:

Here is the image of the screw with the window blind holder:

How do I fit the screw tightly and safely on the large drilled hole on wall?