Hanging solid wood frame pictures should be played with expansion screws properly.
When in use, it is necessary to drill a hole of the corresponding size on the fixed body with an impact drill (hammer), and then put the bolt and expansion tube into the hole, and tighten the nut to make the bolt, expansion tube, installation part and the fixed body expand tightly into one.
After tightening will expand, the bolt tail has a big head, the bolt is set outside a round pipe slightly larger than the diameter of the bolt, the tail part has several openings, when the bolt is tightened, the tail of the big head will be taken to the open pipe inside, the pipe is big, to achieve the purpose of expansion, and then the bolt is fixed on the ground or the wall, to achieve the purpose of rooting.
Hanging solid wood frame pictures should be played with expansion screws properly