[Type]: Self-tapping screw. Head style: Countersunk Phillips Head [Sturdy Material]: These hex nuts are made of nickel-plated carbon steel, offering strength and good corrosion resistance in many environments. [Wide Application]: These screws are suitable for door handles, machinery, and other small repairs around the workshop, garage or home furniture fixings, etc. [Packaging]: 340 pieces per box. 60PCS M3.0x10, 60PCS M3.5x12, 50PCS M3.5x16, 30PCS M3.5x25, 30PCS M4.0x10, 40PCS M4.0x12, 30PCS M4.0x10, 40PCS M4.8x12