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русскийAug 13,2024
Self-tapping screw head forming detection, in the screw forming process, the first is to test the mold for producing the screw. Only good molds can produce good screw products. It is the machine inspection of the production screw, which is conducive to safe and smooth production. The appearance of the formed screws is inspected to see if there are burrs, and the size and length of the formed self-tapping screws are inspected. See if these sizes and lengths meet the national standard or the specific requirements of customers.
1: The application scene is usually outdoors, which has strong corrosion resistance. Its rubber sealing ring can ensure that the screw does not seep into water and has good corrosion resistance.
2: It is usually described by three parameters: screw diameter series, number of threads per inch length and screw length. The screw diameter series is divided into 10 grades and 12 grades, and the corresponding screw diameters are 4.87mm and 5.43mm, respectively. The number of length threads is 14, 16, and 24. The more threads per inch, the stronger the self-drilling ability.
3: It is a screw with a drill bit, which is used for the connection and fixation of some thinner plates, such as the connection between color steel plates and color steel plates, the connection between color steel plates and purlins, wall beams, etc. Its penetration capacity generally does not exceed 6mm , the maximum does not exceed 12mm.
4: The tap and the bolt are combined. The front is the tap and the back is the thread. On some softer materials, a hole can be drilled and screwed in directly. The thread is tapped by the tap, and then the bolt thread is hard. , If the diameter of the self-tapping screw is small and the material is very soft, it can be directly screwed into the product by hand without drilling.
Stock Code: 000906