wedge expansion anchor

In addition to their ease of use and clean finish, countersunk head self-tapping screws are also known for their strength and durability. These screws are typically made from high-quality materials such as stainless steel or hardened steel, which gives them excellent corrosion resistance and high tensile strength. This makes them suitable for use in outdoor or harsh environments where exposure to moisture or temperature fluctuations could compromise the integrity of the fastening.

...

Manufactured with high-strength materials such as steel, stainless steel, or alloy, self-tapping socket head screws come in different sizes and grades to cater to diverse requirements. The head of the screw is typically cylindrical with a domed top, providing a clean and professional appearance once installed. The socket drive allows for a deeper engagement, providing more strength and durability compared to conventional screwdrivers The socket drive allows for a deeper engagement, providing more strength and durability compared to conventional screwdrivers The socket drive allows for a deeper engagement, providing more strength and durability compared to conventional screwdrivers The socket drive allows for a deeper engagement, providing more strength and durability compared to conventional screwdriversself tapping socket head screws.

...