The screw is made of high-grade carbon steel with a surface hardness of 500-550HRC, offering strong toughness. It is suitable for woodworking applications after drilling holes, providing sturdy and durable performance. The screw surface is galvanized for rust and corrosion resistance. The pointed screw head allows for easy drilling into wood and plastic, and it can be used in hardwood applications. Item Name: Screws Quantity: 100 Pieces Material: Carbon Steel Surface Treatment: Galvanized Features: Durable, Self-tapping Screw, Rust Resistant Length: 32mm (1.26"), 38mm (1.50"), 50mm (1.97"), 63mm (2.48") (Approx.) Notes: - The quantity is approximately 100 pieces. Due to manual counting, there may be a 1-3 piece variance. - Due to lighting and screen setting differences, the actual item color may vary slightly from the images. - Slight dimensional differences may occur due to manual measurement. Package Includes: 100 x Screws