Material Gold, Steel, PEX, Plastic, Carbon Steel Cross Drive System Head Style Flat Head Exterior Finish Coated Thread Size M3.5 Point Style Type C Point Metal Type Carbon Steel Head Type Flat Closure Type Screw, Self-Drilling Screw See Less About This Item 【Premium Material】These self-tapping screws are made of excellent carbon steel material with anti-rust coating, strong, durable and not easy to deform or break. 【Easy to Use】The thread of these drywall screws is deep and clear, without burrs, sharp, easy to use and lock with a screwdriver or drill, design self tapping screw, no nuts required. 【Easy to Store】The deck screws are packed in a handy storage box that has separate compartments for each size, making them easy to keep and carry and store. 【Wide Applications】These cross wood screws can be used in wood, thin iron, plasterboard, drywall, ceilings, etc., ideal for repairing furniture, cabinets, doors and wood, etc. Great for home, office and shop. 【What You Get】You get a total