
DIN 7984-Grade 12.9 Black Hexagon Socket Thin Head Cap Screws. 1. Maximum Strength in Ultra-Low Profile Applications Achieve Grade 12.9 high tensile strength despite the reduced head height for clearance-critical assemblies. 2. Premium Alloy Steel with Black Oxide Finish Manufactured from 40Cr or 35CrMo alloy steel offering superior durability and wear resistance. 3. Engineered to Prevent Hydrogen Embrittlement Black oxide finish eliminates the risk of cracking associated with zinc-plated 12.9-grade fasteners. 4. Precision Drive for Secure High-Torque Fastening Hexagon socket drive enables precise torque transfer without stripping in compact machinery spaces. 5. Standardized DIN 7984 Dimensions for Guaranteed Fit Full metric coarse thread range M3-M24 with strict dimensional conformance to German engineering standards.