Introducing a durable and high-quality Button Head Socket Cap Screw, designed for precision fastening applications. Made from strong 12.9-grade steel with a Thermal Black Oxide finish, this screw ensures reliable performance and corrosion resistance. Featuring a M3 x 0.5 thread size and a 4mm length, it is ideal for securely fastening components in a variety of settings. The Hex Socket drive type offers easy installation and removal, while its compliance with RoHS regulations underscores its environmental responsibility. Trust in this ISO 7380-1 standard screw for your industrial or DIY projects, where strength and reliability are paramount.