-
Anonymous users2024-01-23In the basic principle, I agree with the suggestion of the previous friend, and the expansion screw of the anti-theft door should generally be tightened according to the method and torque value required by the manufacturer.
The composite door installation method is the same as the general security door. >>>More
If the new security door screw opening is exactly the same as the old one, it is more troublesome, it is better to consult the installer, they will have a way. Be careful of the old screw plugging in, unscrew the old expansion screw, gently put the screw into it a little, and then pull out the outer sleeve with pliers, and then take out the screw.
Specifications of the expansion screws of the security door. >>>More
Expansion bolt installation method.
1. First measure whether the size of the hole is consistent with the size of the door frame, if it is smaller than the size of the door frame, the excess gray skin should be removed. >>>More
That's styrofoam, cut it vertically with a wallpaper knife (a little inward) and seal it with white sealant on the outside.