• Manufactured in high-quality 10.9 grade carbon steel with excellent resistance to corrosion and wear. • Round head design with internal hexagon that allows for uniform force distribution and a larger support area. • Includes nuts and washers to ensure precise assembly, increase the contact area, and extend the lifespan of the components. • Clean and precise metric threads that facilitate installation and removal with the included hex key. • The kit contains 236 pieces: M4 screws in lengths from 6 mm to 30 mm, washers, nuts, and a wrench. • Ideal for applications in machinery, electronics, household appliances, automotive, furniture, and general repairs.