- Complete kit of 630 pieces: 600 M3 self-tapping screws in 10 sizes (6 to 30 mm) and 30 expansion plugs of 6x30 mm. - Made of 304 stainless steel and carbon steel, with a black finish through a special oxidation process. - High strength, hardness, and durability, ideal for prolonged use in multiple applications. - Screws with Phillips round head and precise threading, easy to install with a manual or electric screwdriver. - Suitable for fastening and penetrating wood, soft metal, plastic, and rubber, widely used in DIY, carpentry, maintenance, and home repairs. - Plastic organizer box included for safe storage and quick access. - Versatile and practical solution for professionals and DIY enthusiasts.