The joiner board is fixed on the square on how
Self tapping nail is generally refers to the thread of the tooth is self tapping, so that the role of self drilling, do not need to use the nut together. The screw head has a lot of classification, there are six outer corners of the head, pan head, with countersunk head, internal angle of six head. An umbrella head, padded head, etc. The tail is usually pointed. Self tapping.
The joiner board can use self tapping screws fixed on the steel, self tapping screws is equipped with drill screws, building materials market can buy. Electric screwdriver, you can put the wood board through self tapping screws into the steel. But attention should be paid to buy the self tapping screw length, short patch does not live too long into the square, too much is not good.
With self tapping screws, that is, with drill screws, building materials market can buy. Electric screwdriver, you can put the wood board through self tapping screws into the steel. But attention should be paid to buy the self tapping screw length, short patch does not live too long into the square, too much is not good.
