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Astm A574 M5 Cross Flat Head Deck 316 Stainless Steel Self Tapping Screw Product：

Self tapping screw is simply a screw that can tap itself. The difference between self-tapping screws and ordinary screws is that ordinary screws must have a processed screw hole to screw in. Self tapping screws do not need to screw in at the same time their own tapping. In order to achieve their own tapping purposes, the hexagonal drill tail screws are generally pointed, in order to facilitate squeezing into the object to be screwed into.

Tapping screws, or quick thread screws, are quick fasteners made of steel with galvanized passivation. Tapping screws are used to connect thin metal plates (steel plates, saw plates, etc.). When connecting, the threaded bottom hole of the connecting piece is made first, and then the tapping screw is screwed into the threaded bottom hole of the connecting piece.

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