Product Overview
Phillips countersunk head 8-rib self-drilling screw is manufactured from high-quality carbon steel and surface-treated with a color zinc passivation anti-corrosion coating, belonging to an integrated self-drilling and self-tapping fastening screw. The product combines three major structures: a Phillips countersunk head, eight anti-slip pressing ribs beneath the head, and a cutting drill point tip. It requires no pre-drilling and can complete drilling, tapping, and locking in a single operation, primarily used for connecting and fixing thin metal sheets combined with composite substrates such as gypsum boards and wooden decorative panels. The product balances installation aesthetics, fastening stability, and high cost-effectiveness, making it a general-purpose, economical fastener for home decoration, small commercial projects, and the door/window sheet metal industry.
Product Applications
Home decoration light steel projects: Fixing of gypsum board partition walls, suspended ceilings, aluminum ceiling panels, and metal decorative trims, providing a clean and neat finished surface.
Door and window processing accessories: Locking of aluminum alloy door/window auxiliary frames and metal edge trims to keels.
Light sheet metal assembly: Splice connections for indoor billboards, ventilation ducts, metal cabinets, and small indoor canopy thin sheets.
Usage environment: Suitable for indoor and mildly humid scenarios; not recommended for highly corrosive environments such as coastal areas or long-term outdoor exposure.
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