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Tapping screw is a kind of screw fastener, mainly used for pre-drilling between metal and non-metal materials, which can drill holes matching with female thread. The tension of the self-tapping screw is relatively strong, and contains the characteristics of a single piece, unilateral combination, th
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The Introduction of Combination screws We use combination screws sometimes in life, but you know about combination screws? Probably few people today know about the combination screw. If you want to know, you can read on about it.Combination screw refers to the screw and spring gasket and flat washer
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What are the features of Hexagonal screws?We are not strange to hexagonal screws. The application is also very common. The general head type is divided into Socket head hexagon, Flat head hexagon, Cup head hexagon, that is, we often say Round head hexagon screw. The head of these screws is round on
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