2. Then screw the screws into the embedded parts until the metal threads below can't be seen. Be careful not to screw them too tightly to prevent the embedded parts from tripping.
3. Lower the side plate of the screw and align it with the hole to be inserted. Be careful not to bend the screws.
4. Align the eccentric cross outward with the exposed screw.
5. Continue the above steps, rotate and tighten the eccentric.
Note: the three-in-one connection reduces the use of adhesive, but there is still a problem that it is unstable and needs to be nailed to the back of furniture to become stable. In order to achieve the effect of hiding without leaving gaps, the embedded parts must be completely knocked into the board, so that the three-in-one connector can not be seen from the outer surface and cracks are not easy to appear.
Extended data:
Three-in-one connector, also known as eccentric connector, consists of eccentric wheel, rod and embedded nut, which is mainly used for the connector of panel furniture. The connector mainly used for panel furniture was invented by Haifule Furniture Fittings Company in 1970s, because the name "minifix" was patented. Later, Hei Di Shi Company also invented its own patented three-in-one connector named "eccentric connector", so the name of "eccentric connector" was adopted abroad. Since it was introduced to China in 1980s, people have named it after the number of accessories: three-in-one connector, two-in-one connector and four-in-one connector.
References:
Baidu encyclopedia-three-in-one connector