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Hexagon socket expansion bolt (also commonly known as floor expansion bolt, hexagon socket anchor), which belongs to heavy-duty internal expansion fasteners, is a subdivided category of internal expansion bolts. It consists of an external hexagon head, a screw rod, and an expansion sleeve. The sleeve is equipped with cutting grooves and anti-slip textures. The external hexagon head can be directly applied with force through a wrench without the need for additional nuts, making installation more convenient