Set of 50 304 Stainless Steel Hex Self-Hex Screws 50 M5,5 x 70 mm Hex Self-tapping Screws. The high quality material is resistant to Rust and corrosion that allows it to last longer than other materials. Robust and durable Can be easily installed with a suitable hex screwdriver. The screws are ideal For use at home, office or industry. Suitable for indoor and outdoor use. Product Description: This batch of 50 high quality 304 stainless steel stainless steel hex screws is ideal for the House, office or industrial use. Suitable for indoor and outdoor use. The high quality material has anti-rust and corrosion resistance properties that allow it to last longer than other materials. It can be easily installed with a suitable, robust and durable hex screwdriver. Note: Stainless steel 304 is flexible, so it can be used only on the aluminum alloy and not on the nickelized steel sheet. Please note that this screw is suitable for fine aluminum alloy leaves, not suitable for stainless steel leaves. Some photos are different sizes of screws, please check the specifications for size information.