Self-tapping screws do not refer to a specific material but rather a type of screw that can drill, tap, and lock into materials without the need for pre-tapping. These screws can be made from various metals, including stainless steel.

Stainless steel self-tapping screws are known for their excellent corrosion resistance and good mechanical strength. They are widely used in outdoor settings, humid environments, kitchen equipment, medical devices, and decorative construction—applications that demand a high level of rust resistance. Common stainless steel grades include 304 and 316, each suitable for different levels of corrosion protection.

However, not all self-tapping screws are made from stainless steel. Many on the market are made from carbon steel or alloy steel and are typically surface-treated—such as zinc-plated, nickel-plated, or phosphated—to enhance their corrosion resistance. These types of screws are more commonly used in scenarios where strength is critical but rust prevention is less demanding, such as in furniture, construction, and machinery assembly. They also offer better cost performance.

If you need a self-tapping screw that offers both corrosion resistance and high strength, stainless steel is undoubtedly the ideal choice. For the right stainless steel or carbon steel self-tapping screws, feel free to contact Jinxin. We offer a wide range of specifications and professional selection advice to meet your fastening needs across various applications.