Features: Self-drilling points for easy penetration into materials Constructed from high-quality carbon steel for durability Truss head design provides enhanced gripping strength Phillips drive type for compatibility with Phillips screwdrivers Zinc-plated finish offers corrosion resistance Packed in a color box for convenient storage and organization Specifications: Brand: Total Type: Screws 8x1/2" Drilling Points Material: High-Quality Carbon Steel 800pcs in Color Box Truss Head Phillips Drive Zinc Plated Finish Packed by Color Box