How much do you know about wood screws and self-tapping screws?
Nov 25,2022 /
Once a wood screw
has entered the wood, it can be embedded very securely. If the wood is not decayed, it is impossible for us to pull it out. Even if you pull it out forcibly, it will damage the wood and bring out the nearby wood. So we need tools to unscrew the wood screws. Another thing we need to pay attention to is that the wood screws must be screwed in with a screwdriver, and the wood screws cannot be forced in with a hammer. This will easily damage the wood around the wood screws and the connection will not be tight. Wood screws have stronger fixing ability than nails, and they can be removed and replaced without damaging the wood surface, so they are more convenient to use.
The thread on the self-tapping screw rod is a special self-tapping screw thread, which is usually used to connect two thin metal components (steel plate, saw board, etc.). As the name implies, the self-tapping screw can be tapped by itself, it has high hardness, and can be directly screwed into the hole of the component to form a corresponding internal thread in the component.
Self-tapping screws can tap internal threads on the metal body to form thread engagement and fasten. However, due to its high thread base diameter, when it is used in wood products, the cut into wood will be relatively shallow, and due to the small thread pitch, there will be less wood structure between each two threads. Therefore, it is unreliable and unsafe to use self-tapping screws for wooden mounting parts, especially looser woods.