concrete expanding anchors

The functionality of metal expansion nuts centers around the principle of mechanical expansion. Upon the application of torque, the screw or bolt is threaded into the nut, which, in turn, causes the nut to expand outward. This outward expansion presses the sides of the nut against the inner walls of the hole it occupies, creating a tight fit. The added friction and mechanical grip prevent the nut from loosening over time, even in dynamic conditions.


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The self-tapping attribute of these screws allows them to create their own thread in the metal substrate, ensuring a strong and reliable hold. Made from high-quality materials like steel or stainless steel, they offer excellent resistance to corrosion, making them suitable for both indoor and outdoor use Made from high-quality materials like steel or stainless steel, they offer excellent resistance to corrosion, making them suitable for both indoor and outdoor use Made from high-quality materials like steel or stainless steel, they offer excellent resistance to corrosion, making them suitable for both indoor and outdoor use Made from high-quality materials like steel or stainless steel, they offer excellent resistance to corrosion, making them suitable for both indoor and outdoor usecountersunk self drilling screws for metal.

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