What are the components of this force in x-z direction I'm not able to visualize the components of $F$ in x and z direction. As I can tell $F_y=300\cos(30^\circ)$.
I don't think the drawing is clear.  If you want a real answer you should have a three view drawing, which will show where the angles are measured more clearly.  When I first looked, the line $30^\circ$ from the force seemed to be perpendicular to the plate, the direction a drill bit would go through to drill the hole.  If that is true the force is purely in the $x$ direction.  On a second look, the line $30^\circ$ from the force seems to be parallel to $y$.  That would support your claim that $F_y=300 \cos(30^\circ)$.  I don't understand what the blue line is trying to tell us.  I also can't tell whether $F$ has a component in the $z$ direction or not.
You obiously need to do two projections.
See the axis which starts at point A and is perpendicualr to the y axis. Let's call it $v$.
Then $F_v=300 \cdot \sin (30º)$
Now project that one into the x and z components.
$F_x=F_v\cdot cos(150º) = - 300\ N\sin (30º)\cos (30º)$