The main purpose of Hexagon Flange Bolt is usually to connect thinner sheet metal materials. The external thread of the self-tapping screw has high strength (≥HRC45). When connecting, screw the self-tapping screw into the connector that is made into the threaded bottom hole in advance, so that the thread can be tapped in the threaded bottom hole of the connector and then Make connections to improve efficiency.
There is a unique screw that has stronger working characteristics than ordinary self-tapping screws and can even replace the application of equipment screws-self-tapping pin screws are often used for connection between thin metal sheets. The difference between it and the general self-tapping screw is the general external thread of the arc-shaped triangular page with higher toughness. This kind of excellent screw with low screw-in torque and high clamping characteristics can naturally tap the thread in the bottom hole of the connected thread like a normal screw.
In the interior decoration, the wall self-tapping screws are used to connect the gypsum wallboard and the main keel of metal materials. This type of screw has a high toughness (≥HRC53) multi-head external thread, which can be quickly screwed into the main keel to create a connection, even if it is not made. Prefabricated component holes.
I have talked about so many self-drilling and self-tapping screws and their general self-tapping screws. What is the difference between them? Generally, when connecting with self-tapping screws, it must go through the two technological processes of drilling and tapping. Relative to general self-tapping screws, self-drilling and self-tapping screws combine two technological processes into one when connecting. It uses the twist drill in front of the screw to drill holes, and then immediately uses the screw to tap (including tightening the connection), which not only saves time and effort, but also improves the high efficiency of engineering construction.
Let's take a look at other types of Threaded Rods And Eye Bolts, and take a look at their respective characteristics.
In places that are not allowed to be exposed, they are generally countersunk head and hexagon socket tapping screws, in which the hexagon socket self-tapping screws bear greater torque than countersunk head self-tapping screws; in places that allow exposure, they are generally pan head and Hexagon head tapping screws, in which the hexagon head tapping screws also bear greater torque than the pan head tapping screws. In places where light exposure is allowed, half countersunk head tapping screws are suitable. Different self-tapping screws must have different special tools when assembling and disassembling them. Cross-slot self-tapping screws must use cross-shaped screwdrivers; slotted self-tapping screws must use flat-head screwdrivers; hex-head self-tapping screws A flat wrench, box wrench, socket wrench or adjustable wrench must be used; the hexagon socket type self-tapping screw must be a hexagon socket type wrench.