How to install expansion screw? How big is the screw? What size is it? Or what? How do you see the size?
M6, for example, uses a drill with a diameter of 8, so that the expansion part of the expansion screw is able to penetrate the wall.
What size screws should be made with a large 2 millimeter head, and the diameter and length of the tail are the type
Expansion screws have models, usually M6, M8, M10, M12 and so on. M6 only refers to the diameter of the nut and screw. If drilling, the drill bit should be selected according to the diameter of the expanding part of the expansion tube. We usually use larger size drills.
If the expansion screw is installed, drill with the drill bit first, then plug the expansion screw without the nut into the hole, and then tighten the nut with a wrench.
