Chipboard screw diameter
Joker new fixing which also well known as plasterboard fixing and drywall anchor. It is a one piece drive type designed for use in drywall, gypsum for light to medium duty loads. It has a sharp point that can pierce the wall, and there is no need to pre-drilling. The flat head can be fixed horizontally with the surface of base material. Legs wallboard anchors leave a small slit in the wallboard when it is removed, it doesn’t affect the appearance of the wall.
Wallboard, plasterboard, gas concrete, hollow gypsum and plasterboard
How to install legs wallboard anchor