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a flat nibs for countersinking the screw head flush with the surface
The self-drilling tip allows the screw to be installed without the need for a pilot hole
The included drill bit is specifically designed for drilling into concrete
These 6-20 x 3/4 Phillips indented hex washer self-tapping screws are Type AB and fully threaded
4-24 x 1/4 Phillips Flat Undercut Self Tapping Screw Type AB Fully Threaded Zinc BMG a flat nibs for countersinkingThe 4 24 x 1 4 Phillips flat undercut self tapping screw type AB is a fully threaded screw made of zinc plated steel. It has a Phillips drive head and a flat undercut point. The screw is designed to tap its own threads into metal, plastic, or wood. It is commonly used in applications where a strong, secure hold is required. The zinc plating provides corrosion resistance and helps to extend the life of the screw.
