As the professional manufacturer, we would like to provide you Hex Flange Head 304+410 Mechanical Zinc Plating Self Tapping Threads Bi-Metal Screws for Metal Teck.

Hex Flange Head 304+410 Mechanical Zinc Plating Self Tapping Threads Bi-Metal Screws for Metal Teck

Self tapping screws for non-metal or soft metal, do not need to hit the bottom hole and tapping; Self tapping screws are pointed, so as to "self tapping"; Ordinary screws are flat - headed and of the same thickness.

Self-tapping screws are mainly used for the connection and fixation of some relatively thin plate parts, such as the connection of color steel plate and color steel plate, color steel plate and purlin, wall beam connection, etc., its penetration capacity is generally not more than 6mm, the maximum is not more than 12mm.

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