Several Common Types Of Self-Tapping Screws
The shape of the self-tapping screw is very similar to that of the machine screw, but the thread on the screw of the self-tapping screw is the thread of the self-tapping screw. It is mainly used to connect and tighten two thinner metal components, but it is necessary to make small holes in advance because the hardness of this screw is higher, it can be directly screwed into the hole of the metal component so that the corresponding internal thread is formed in the component. This connection form is a detachable connection and can be removed later.
As a professional fastener manufacturer, Xinchi is happy to share several of the more common self-tapping screws and the use of self-tapping screws.
Common Types Of Self-Tapping Screws
Head shape (head shape): Various head shapes. There is round head (half round head), flat head, round head (with pad), flat head flange (with pad), pan head flange (with pad), countersunk head, semi-countersunk head, cylindrical head, spherical cylinder head, horn head, hexagonal head, hexagonal flange head. Hexagonal flange (with pad) first class.
Screw mode (trough type): The wrench method refers to the method of twisting the head of the screw when installing and fastening the screw. There are two basic methods: external and internal. In general, the external wrench’s torque is greater than any form of internal wrench (inner groove). External wrench: hex, hex flange, hex flange, hex flower, etc.; Internal screw: one word
Groove, cross groove H type, cross groove Z type, cross groove F type, square groove, compound groove, internal spline, hex flower, inner triangle, hex, inner 12 Angle, clutch groove, six blade groove, high torque cross groove, etc.
Thread type: There are many kinds of thread, including self-tapping thread (wide tooth thread), machine thread (ordinary thread), drywall thread, fiberboard thread, and other special threads. In addition, the threads can be divided into single leads (single head), double leads (double head), multiple leads (multiple heads), and high and low-tooth double-head threads.
End style (tail): The end styles are mainly cone ends and flat ends. However, according to the needs of the user, at the end of the screwing part, it can be machined with cutting functions, grooves, notches, or parts similar to the shape of the drill bit. In some standards, the cone end or the flat end also has different forms, such as the round head end.
The Use Of Self-Tapping Screws
Self-tapping screws are a kind of fasteners for comparison in life, but many people may not understand their use. The self-tapping screw can be hit with a screwdriver, drill, or an electric hammer, which is generally needed when it is punched into concrete. In daily life, it is generally used to punch holes with an electric screwdriver, and then install screws. This is a relatively simple installation method.
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