• Made of high-hardness 410 stainless steel with corrosion-resistant black oxidation surface treatment. • Internal hexagon design that provides a solid fix and facilitates precise tightening and removal. • Sharp self-drilling tips suitable for drilling through wood, metal plate or plastic efficiently. • The package includes 60 screws M5.5x38 mm, a bit for an electric screwdriver and a hex key. • Ideal for applications in construction, repairs, furniture manufacturing, automotive industry and DIY projects. • Includes a storage box to keep components organized and facilitate use.