This screw ye use, and how to use next to the cover
This is also the expansion screw. First make a hole, put the plastic into, and then on the top of the screw
This is an expansion screw. Take a suitable electric drill bit to drill a hole in the wall, and then put the sleeve into the eyes of the drill, put the screw into the sleeve, this than the ordinary screw firm.
This requires the use of professional mechanical drilling machine, and then use the reaming machine to the plastic nail into the hole, and finally twisted into the nail on the line
With the use of electric drill, with the corresponding screw bit on the wall where the need to make a hole, talk about the plastic protrusion into the hole into the hole, then the screw on the.
