304 Expansion Screw

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A 304 expansion screw, often made from 304-grade stainless steel, is a type of anchor used for securing objects to materials where creating a stable, permanent hold is essential, particularly in concrete, stone, or brick. The "304" designation refers to the type of stainless steel used, which is known for its excellent corrosion resistance and durability, making it ideal for both indoor and outdoor applications.