The general method of processing non-standard pre-built nuts is injection molding. After heating, it is put into plastic parts or directly injection molded. Due to the good heat transfer of brass, the brass nut insert can be heated quickly by pressing it into the plastic substrate after heating. After heating, the heat can also be transferred to the plastic part quickly, so that the plastic hole near the soft, the goods can be pressed into the hole quickly. If mold injection is used, the temperature of the copper insert will rise quickly after heat injection because the diameter has an embossing process.
Embedded nut, including nut body, a plurality of reverse rotation tendons, upper gear edge, connecting rod, pulling gear, nut body has a threaded cavity, the threaded cavity is a closed inner cavity under the upper end of the opening, the threaded cavity has threads on the inner wall, the nut body has an upper gear edge above and around over the nut body, the nut body has a plurality of rotation strengthening tendons on the side, the rotation strengthening tendons are set around the nut body spacing, the nut body has a connecting rod below, the connecting rod below There are anti-pulling gears, according to the connecting rod and anti-pulling gear below the pre-buried nut, when the nut is buried in concrete, the lower pulling gear can increase the friction to avoid the nut being pulled up, and the pre-buried nut processing factory can improve the nut's rotational ability according to the rotational strengthening tendons set on the outer wall of the nut.
