[Rakthi]

Just a regular one. I have found in the AROCS and again in this kit that there is always enough leeway to get to the screw heads, be it at an angle.

I usually put the nut on by hand and get it as tight as possible. In most cases there is enough friction between the head of the philips screw and the metal part that you can just tighten the nut without having to use the screw driver, or it only takes half a turn with the screwdriver.