• Made of high-quality stainless steel, these screws offer high hardness, corrosion resistance, and oxidation resistance, ensuring durability and reliability. • The self-drilling design allows for drilling, tapping, and fastening directly into the base material, saving construction time and providing a strong grip. • The wafer head and Phillips design ensure a firm fixation in wood and metal, preventing deformation or movement during use. • Ideal for fastening steel structures, colored steel tiles, and other materials in simple constructions, as well as in manufacturing, construction, and assembly applications. • Includes a total of 220 screws in different sizes: 20 units of M4.2 x 32 mm, 45 units of M4.2 x 25 mm, 60 units of M4.2 x 13 mm, 60 units of M4.2 x 19 mm, and 35 units of M4.2 x 50 mm. • Packaged in a storage box for easy use, location, and transport. • Package dimensions: 10 cm wide, 2.3 cm high, and 17 cm long.